diff --git a/docs/2DAiryBeam.html b/docs/2DAiryBeam.html
index c3656c7..0a651e1 100644
--- a/docs/2DAiryBeam.html
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@@ -239,7 +239,7 @@ <h1><span class="section-number">7.3.1. </span>Generation of a 2-dimensional Air
 
   <div role="contentinfo">
     <p>&#169; Copyright 2017, Fred van Goor.
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diff --git a/docs/BesselBeamWithAnnularSlit.html b/docs/BesselBeamWithAnnularSlit.html
index b883b4a..071caa6 100644
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+++ b/docs/BesselBeamWithAnnularSlit.html
@@ -137,7 +137,7 @@ <h1><span class="section-number">7.4.1.2. </span>Generation of a Bessel beam wit
 
   <div role="contentinfo">
     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
+      <span class="lastupdated">Last updated on Aug 06, 2024.
       </span></p>
   </div>
 
diff --git a/docs/BesselBeamWithAxicon.html b/docs/BesselBeamWithAxicon.html
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--- a/docs/BesselBeamWithAxicon.html
+++ b/docs/BesselBeamWithAxicon.html
@@ -133,7 +133,7 @@ <h1><span class="section-number">7.4.2. </span>Generation of a Bessel beam with
 
   <div role="contentinfo">
     <p>&#169; Copyright 2017, Fred van Goor.
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+      <span class="lastupdated">Last updated on Aug 06, 2024.
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diff --git a/docs/CollimatingEdgeWaves.html b/docs/CollimatingEdgeWaves.html
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@@ -139,7 +139,7 @@ <h1><span class="section-number">7.4.1.1. </span>Collimating the edge waves with
 
   <div role="contentinfo">
     <p>&#169; Copyright 2017, Fred van Goor.
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diff --git a/docs/Diaprojector.html b/docs/Diaprojector.html
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@@ -350,7 +350,7 @@ <h2><span class="section-number">9.9. </span>Appendix 1.<a class="headerlink" hr
 
   <div role="contentinfo">
     <p>&#169; Copyright 2017, Fred van Goor.
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diff --git a/docs/DiffractionRoundHole.html b/docs/DiffractionRoundHole.html
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--- a/docs/DiffractionRoundHole.html
+++ b/docs/DiffractionRoundHole.html
@@ -7,7 +7,7 @@
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     <p>&#169; Copyright 2017, Fred van Goor.
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diff --git a/docs/FabryPerot.html b/docs/FabryPerot.html
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@@ -223,7 +223,7 @@ <h2><span class="section-number">8.3.5.3. </span>Questions about the Fabry Perot
 
   <div role="contentinfo">
     <p>&#169; Copyright 2017, Fred van Goor.
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diff --git a/docs/FresnelDiffraction.html b/docs/FresnelDiffraction.html
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@@ -258,7 +258,7 @@ <h2><span class="section-number">8.3.6.3. </span>Questions about Fresnel diffrac
 
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     <p>&#169; Copyright 2017, Fred van Goor.
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diff --git a/docs/FresnelZonePlate.html b/docs/FresnelZonePlate.html
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diff --git a/docs/GRINDemo.html b/docs/GRINDemo.html
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     <p>&#169; Copyright 2017, Fred van Goor.
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diff --git a/docs/GRINYoung.html b/docs/GRINYoung.html
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--- a/docs/GRINYoung.html
+++ b/docs/GRINYoung.html
@@ -7,7 +7,7 @@
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@@ -133,7 +133,7 @@
 
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
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     <p>&#169; Copyright 2017, Fred van Goor.
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@@ -130,7 +130,7 @@ <h1><span class="section-number">7.5.2. </span>Laguerre Gauss modes.<a class="he
 
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
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@@ -190,7 +190,7 @@ <h2><span class="section-number">7.5.7.2. </span>From Laguerre to Hermite.<a cla
 
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
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diff --git a/docs/MichelsonInterferometer.html b/docs/MichelsonInterferometer.html
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-      <link rel="stylesheet" type="text/css" href="_static/plot_directive.css?v=7f9a90b1" />
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@@ -135,7 +135,7 @@ <h1><span class="section-number">7.1.3. </span>Multi- holes and slits.<a class="
 
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
+      <span class="lastupdated">Last updated on Aug 06, 2024.
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@@ -214,7 +214,7 @@ <h2><span class="section-number">8.3.4.3. </span>Questions about Newton rings.<a
 
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
+      <span class="lastupdated">Last updated on Aug 06, 2024.
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diff --git a/docs/PatternRecognition.html b/docs/PatternRecognition.html
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@@ -151,7 +151,7 @@ <h1><span class="section-number">7.9.1. </span>Pattern recognition.<a class="hea
 
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
+      <span class="lastupdated">Last updated on Aug 06, 2024.
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@@ -123,7 +123,7 @@ <h1><span class="section-number">7.6.1. </span>Phase recovery using Gerchberg Sa
 
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
+      <span class="lastupdated">Last updated on Aug 06, 2024.
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     <p>&#169; Copyright 2017, Fred van Goor.
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     <p>&#169; Copyright 2017, Fred van Goor.
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
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@@ -125,7 +125,7 @@ <h1><span class="section-number">7.7.2. </span>Radial shear interferometer.<a cl
 
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
+      <span class="lastupdated">Last updated on Aug 06, 2024.
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     <p>&#169; Copyright 2017, Fred van Goor.
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
+      <span class="lastupdated">Last updated on Aug 06, 2024.
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@@ -205,7 +205,7 @@ <h2><span class="section-number">8.3.1.2. </span>Questions about the spherical w
 
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
+      <span class="lastupdated">Last updated on Aug 06, 2024.
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
+      <span class="lastupdated">Last updated on Aug 06, 2024.
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@@ -223,7 +223,7 @@ <h2><span class="section-number">8.3.3.3. </span>Questions about Young’s exper
 
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     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
+      <span class="lastupdated">Last updated on Aug 06, 2024.
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     <p>&#169; Copyright 2017, Fred van Goor.
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+      <span class="lastupdated">Last updated on Aug 06, 2024.
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     <p>&#169; Copyright 2017, Fred van Goor.
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+      <span class="lastupdated">Last updated on Aug 06, 2024.
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"approach": 42, "finit": 42, "differ": 42, "split": 42, "mix": 42, "interpol": 42, "intens": 42, "filter": 42, "polynomi": 42, "coordin": 42, "random": 42, "spatial": 42, "amplifi": 42, "diagnost": 42, "strehl": 42, "ratio": 42, "power": 42, "field": 42, "normal": 42, "centroid": 42, "width": 42, "d4": 42, "sigma": 42, "tem00": 43, "describ": 43, "geometr": 43, "abcd": 43, "matrix": 43, "formul": 43, "rai": 43, "eigen": 43, "valu": 43, "vector": 43, "collect": 43, "can": 43, "confin": 43, "second": 43, "moment": 43, "bright": 43, "get": 43, "constant": 43, "c": 43, "support": 44}, "envversion": {"sphinx.domains.c": 3, "sphinx.domains.changeset": 1, "sphinx.domains.citation": 1, "sphinx.domains.cpp": 9, "sphinx.domains.index": 1, "sphinx.domains.javascript": 3, "sphinx.domains.math": 2, "sphinx.domains.python": 4, "sphinx.domains.rst": 2, "sphinx.domains.std": 2, "sphinx": 60}, "alltitles": {"Generation of a 2-dimensional Airy beam from a Gaussian laser beam.": [[0, "generation-of-a-2-dimensional-airy-beam-from-a-gaussian-laser-beam"]], "Self-healing Airy beam.": [[0, "self-healing-airy-beam"]], "Generation of a Bessel beam with a lens and an annular slit.": [[1, "generation-of-a-bessel-beam-with-a-lens-and-an-annular-slit"]], "Generation of a Bessel beam with an axicon.": [[2, "generation-of-a-bessel-beam-with-an-axicon"]], "Collimating the edge waves with a lens.": [[3, "collimating-the-edge-waves-with-a-lens"]], "Diaprojector (In Dutch).": [[4, "diaprojector-in-dutch"]], "Twee optica wetten.": [[4, "twee-optica-wetten"]], "Het maken van een afbeelding op een scherm.": [[4, "het-maken-van-een-afbeelding-op-een-scherm"]], "Uitvoering van het afbeeldingsexperiment (Niveau 1, basisonderwijs).": [[4, "uitvoering-van-het-afbeeldingsexperiment-niveau-1-basisonderwijs"]], "Meting van de brandpuntsafstand van de lens.": [[4, "meting-van-de-brandpuntsafstand-van-de-lens"]], "Bepaling van de plaats van het scherm.": [[4, "bepaling-van-de-plaats-van-het-scherm"]], "Uitvoering van het afbeeldingsexperiment (Niveau 2, voortgezet onderwijs, HBO, 1e jaars universiteit).": [[4, "uitvoering-van-het-afbeeldingsexperiment-niveau-2-voortgezet-onderwijs-hbo-1e-jaars-universiteit"]], "Stap voor stap uitvoering van het experiment.": [[4, "stap-voor-stap-uitvoering-van-het-experiment"]], "Meetfouten.": [[4, "meetfouten"]], "Appendix 1.": [[4, "appendix-1"]], "Laguerre doughnut modes.": [[6, "laguerre-doughnut-modes"]], "Fabry Perot interferometer.": [[7, "fabry-perot-interferometer"]], "Measurement of the distance between two wavelengths.": [[7, "measurement-of-the-distance-between-two-wavelengths"]], "Measurement of the refractive index of a medium.": [[7, "measurement-of-the-refractive-index-of-a-medium"]], "Questions about the Fabry Perot interferometer.": [[7, "questions-about-the-fabry-perot-interferometer"]], "Fresnel diffraction.": [[8, "fresnel-diffraction"]], "Fresnel diffraction, plane wavefront.": [[8, "fresnel-diffraction-plane-wavefront"]], "Fresnel diffraction, spherical wavefront.": [[8, "fresnel-diffraction-spherical-wavefront"]], "Questions about Fresnel diffraction.": [[8, "questions-about-fresnel-diffraction"]], "Fresnel zone plate.": [[9, "fresnel-zone-plate"]], "Demonstration of a GRIN lens.": [[10, "demonstration-of-a-grin-lens"]], "Interference of a doughnut laser beam: collinear beams.": [[13, "interference-of-a-doughnut-laser-beam-collinear-beams"]], "Interference of a doughnut laser beam: tilted beams.": [[14, "interference-of-a-doughnut-laser-beam-tilted-beams"]], "Laguerre Gauss modes.": [[15, "laguerre-gauss-modes"]], "Transformation of high order Gauss modes.": [[16, "transformation-of-high-order-gauss-modes"]], "From Hermite to Laguerre.": [[16, "from-hermite-to-laguerre"]], "From Laguerre to Hermite.": [[16, "from-laguerre-to-hermite"]], "Multi- holes and slits.": [[18, "multi-holes-and-slits"]], "Newton rings.": [[19, "newton-rings"]], "Measurement of the radius of curvature of the lens.": [[19, "measurement-of-the-radius-of-curvature-of-the-lens"]], "Measurement of the refractive index of the film between the lens and the flat plate.": [[19, "measurement-of-the-refractive-index-of-the-film-between-the-lens-and-the-flat-plate"]], "Questions about Newton rings.": [[19, "questions-about-newton-rings"]], "Pattern recognition.": [[20, "pattern-recognition"]], "Phase recovery using Gerchberg Saxton iteration.": [[21, "phase-recovery-using-gerchberg-saxton-iteration"]], "Spot of Poisson.": [[22, "spot-of-poisson"]], "From Poisson spot to a non-diffractive Bessel beam.": [[23, "from-poisson-spot-to-a-non-diffractive-bessel-beam"]], "Propagation in a lens-like, absorptive medium.": [[24, "propagation-in-a-lens-like-absorptive-medium"]], "Radial shear interferometer.": [[25, "radial-shear-interferometer"]], "Internal reflection and refraction.": [[26, "internal-reflection-and-refraction"]], "Measurement of the refractive index of the medium.": [[26, "measurement-of-the-refractive-index-of-the-medium"]], "Questions.": [[26, "questions"]], "Shack Hartmann sensor.": [[27, "shack-hartmann-sensor"]], "Spherical wavefront.": [[28, "spherical-wavefront"]], "Irradiance dependency of a spherical wavefront.": [[28, "irradiance-dependency-of-a-spherical-wavefront"]], "Questions about the spherical wavefront.": [[28, "questions-about-the-spherical-wavefront"]], "Laser simulation, stable laser resonator.": [[29, "laser-simulation-stable-laser-resonator"]], "Transformation of a fundamental Gauss mode into a doughnut mode with a spiral phase plate.": [[30, "transformation-of-a-fundamental-gauss-mode-into-a-doughnut-mode-with-a-spiral-phase-plate"]], "Two holes interferometer.": [[31, "two-holes-interferometer"]], "Measurement of the wavelength.": [[31, "measurement-of-the-wavelength"]], "Measurement of the thickness of a thin film that covers one of the holes.": [[31, "measurement-of-the-thickness-of-a-thin-film-that-covers-one-of-the-holes"]], "Questions about Young\u2019s experiment.": [[31, "questions-about-young-s-experiment"]], "Unstable laser resonator.": [[32, "unstable-laser-resonator"]], "User defined functions.": [[33, "user-defined-functions"]], "User defined functions in a subdirectory of your Python scripts.": [[33, "user-defined-functions-in-a-subdirectory-of-your-python-scripts"]], "Make your functions part of your LightPipes for Python installation.": [[33, "make-your-functions-part-of-your-lightpipes-for-python-installation"]], "Your command should be an extension of LightPipes.": [[33, "your-command-should-be-an-extension-of-lightpipes"]], "Zernike aberrations.": [[35, "zernike-aberrations"]], "Command Reference.": [[36, "module-LightPipes"]], "Computer practical.": [[37, "computer-practical"]], "Introduction to computer practical.": [[37, "introduction-to-computer-practical"]], "Prepare your computer.": [[37, "prepare-your-computer"]], "Assignments.": [[37, "assignments"]], "Examples.": [[38, "examples"]], "Interference examples.": [[38, "interference-examples"]], "Diffraction examples.": [[38, "diffraction-examples"]], "Non-diffracting Airy beams.": [[38, "non-diffracting-airy-beams"]], "Non-diffractive Bessel beam.": [[38, "non-diffractive-bessel-beam"]], "Laser examples.": [[38, "laser-examples"]], "Phase recovery.": [[38, "phase-recovery"]], "Zernike aberration.": [[38, "zernike-aberration"]], "Graded index media GRIN.": [[38, "graded-index-media-grin"]], "Fourier optics.": [[38, "fourier-optics"]], "LightPipes for Python 2.1.5": [[39, "lightpipes-for-python-release"]], "contents:": [[39, "contents"]], "Installation.": [[40, "installation"]], "LightPipes  release notes.": [[40, "lightpipes-release-notes"]], "Known installation problems.": [[40, "known-installation-problems"]], "Using LightPipes with the pyFFTW package.": [[40, "using-lightpipes-with-the-pyfftw-package"]], "Introduction.": [[41, "introduction"]], "Credits.": [[41, "credits"]], "Gauss TEM00 mode described with geometric optics.": [[43, "gauss-tem00-mode-described-with-geometric-optics"]], "ABCD matrix formulation to describe the propagation of rays.": [[43, "abcd-matrix-formulation-to-describe-the-propagation-of-rays"]], "Eigen values and eigen vectors (eigen rays)": [[43, "eigen-values-and-eigen-vectors-eigen-rays"]], "Collection of rays that can be confined to the resonator": [[43, "collection-of-rays-that-can-be-confined-to-the-resonator"]], "Second moments": [[43, "second-moments"]], "Wavefront radius": [[43, "wavefront-radius"]], "Brightness": [[43, "brightness"]], "Get the constant c": [[43, "get-the-constant-c"]], "Support.": [[44, "support"]], "Diffraction from a circular aperture.": [[5, "diffraction-from-a-circular-aperture"]], "Hermite Gauss modes.": [[12, "hermite-gauss-modes"]], "Young\u2019s experiment with GRIN lens.": [[11, "young-s-experiment-with-grin-lens"]], "Young\u2019s experiment.": [[34, "young-s-experiment"]], "Michelson interferometer.": [[17, "michelson-interferometer"]], "Manual.": [[42, "manual"]], "First steps.": [[42, "first-steps"]], "Starting the calculations.": [[42, "starting-the-calculations"]], "The dimensions of structures.": [[42, "the-dimensions-of-structures"]], "Apertures and screens.": [[42, "apertures-and-screens"]], "Graphing and visualisation.": [[42, "graphing-and-visualisation"]], "Free space propagation.": [[42, "free-space-propagation"]], "FFT propagation (spectral method).": [[42, "fft-propagation-spectral-method"]], "Direct integration as a convolution: FFT approach.": [[42, "direct-integration-as-a-convolution-fft-approach"]], "Direct integration.": [[42, "direct-integration"]], "Finite difference method.": [[42, "finite-difference-method"]], "Splitting and mixing beams.": [[42, "splitting-and-mixing-beams"]], "Interpolation.": [[42, "interpolation"]], "Phase and intensity filters.": [[42, "phase-and-intensity-filters"]], "Zernike polynomials.": [[42, "zernike-polynomials"]], "Spherical coordinates.": [[42, "spherical-coordinates"]], "User defined phase and intensity filters.": [[42, "user-defined-phase-and-intensity-filters"]], "Random filters.": [[42, "random-filters"]], "FFT and spatial filters.": [[42, "fft-and-spatial-filters"]], "Laser amplifier.": [[42, "laser-amplifier"]], "Diagnostics.": [[42, "diagnostics"]], "Strehl ratio.": [[42, "strehl-ratio"]], "Beam power.": [[42, "beam-power"]], "Field normalization.": [[42, "field-normalization"]], "Centroid.": [[42, "centroid"]], "Beam width.": [[42, "beam-width"]], "D4\\sigma": [[42, "d4-sigma"]], "References": [[42, "references"]]}, "indexentries": {"beammix": [[17, "index-0"]], "begin": [[17, "index-0"], [38, "index-0"], [38, "index-1"], [38, "index-2"]], "forvard": [[17, "index-0"], [38, "index-0"], [38, "index-1"], [38, "index-2"], [42, "index-0"]], "gausshermite": [[17, "index-0"]], "intattenuator": [[17, "index-0"]], "intensity": [[17, "index-0"], [38, "index-0"], [38, "index-1"], [38, "index-2"]], "lens": 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[[38, "index-3"]], "doughnut mode": [[38, "index-1"]], "laser": [[38, "index-1"]], "phase recovery": [[38, "index-2"]], "resonator": [[38, "index-1"]], "stable laser resonator": [[38, "index-1"]], "unstable laser resonator": [[38, "index-1"]], "forward": [[42, "index-0"]], "steps": [[42, "index-0"]]}})
\ No newline at end of file
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"BesselBeamWithAnnularSlit.rst", "BesselBeamWithAxicon.rst", "CollimatingEdgeWaves.rst", "Diaprojector.rst", "DiffractionRoundHole.rst", "DoughnutModes.rst", "FabryPerot.rst", "FresnelDiffraction.rst", "FresnelZonePlate.rst", "GRINDemo.rst", "GRINYoung.rst", "HermiteGaussModes.rst", "InterferenceDoughnutCollinear.rst", "InterferenceDoughnutTilted.rst", "LaguerreGaussModes.rst", "LaserModeTransformer.rst", "MichelsonInterferometer.rst", "MultiHoleAndSlit.rst", "NewtonRings.rst", "PatternRecognition.rst", "PhaseRecoveryGerchbergSaxton.rst", "PoissonSpot.rst", "PoissonSpottoBesselBeam.rst", "PropagationLensLikeMedium.rst", "RadialShearInterferometer.rst", "Reflect.rst", "ShackHartmannSensor.rst", "SphericalWavefront.rst", "StableLaserResonator.rst", "TransformationtoDoughnutMode.rst", "TwoHoles.rst", "UnstableLaserResonator.rst", "UserDefinedFunctions.rst", "YoungsExperiment.rst", "ZernikeAberrations.rst", "command-reference.rst", "computerprac.rst", "examples.rst", "index.rst", "install.rst", "introduction.rst", "manual.rst", "resonator_geometric_optics.rst", "support.rst"], "titles": ["<span class=\"section-number\">7.3.1. </span>Generation of a 2-dimensional Airy beam from a Gaussian laser beam.", "<span class=\"section-number\">7.4.1.2. </span>Generation of a Bessel beam with a lens and an annular slit.", "<span class=\"section-number\">7.4.2. </span>Generation of a Bessel beam with an axicon.", "<span class=\"section-number\">7.4.1.1. </span>Collimating the edge waves with a lens.", "<span class=\"section-number\">9. </span>Diaprojector (In Dutch).", "<span class=\"section-number\">7.2.1. </span>Diffraction from a circular aperture.", "<span class=\"section-number\">7.5.3. </span>Laguerre doughnut modes.", "<span class=\"section-number\">8.3.5. </span>Fabry Perot interferometer.", "<span class=\"section-number\">8.3.6. </span>Fresnel diffraction.", "<span class=\"section-number\">7.2.3. </span>Fresnel zone plate.", "<span class=\"section-number\">7.8.1. </span>Demonstration of a GRIN lens.", "<span class=\"section-number\">7.8.2. </span>Young\u2019s experiment with GRIN lens.", "<span class=\"section-number\">7.5.1. </span>Hermite Gauss modes.", "<span class=\"section-number\">7.1.4. </span>Interference of a doughnut laser beam: collinear beams.", "<span class=\"section-number\">7.1.5. </span>Interference of a doughnut laser beam: tilted beams.", "<span class=\"section-number\">7.5.2. </span>Laguerre Gauss modes.", "<span class=\"section-number\">7.5.7. </span>Transformation of high order Gauss modes.", "<span class=\"section-number\">7.1.2. </span>Michelson interferometer.", "<span class=\"section-number\">7.1.3. </span>Multi- holes and slits.", "<span class=\"section-number\">8.3.4. </span>Newton rings.", "<span class=\"section-number\">7.9.1. </span>Pattern recognition.", "<span class=\"section-number\">7.6.1. </span>Phase recovery using Gerchberg Saxton iteration.", "<span class=\"section-number\">7.2.2. </span>Spot of Poisson.", "<span class=\"section-number\">7.4.1. </span>From Poisson spot to a non-diffractive Bessel beam.", "<span class=\"section-number\">7.8.3. </span>Propagation in a lens-like, absorptive medium.", "<span class=\"section-number\">7.7.2. </span>Radial shear interferometer.", "<span class=\"section-number\">8.3.2. </span>Internal reflection and refraction.", "<span class=\"section-number\">7.7.3. </span>Shack Hartmann sensor.", "<span class=\"section-number\">8.3.1. </span>Spherical wavefront.", "<span class=\"section-number\">7.5.4. </span>Laser simulation, stable laser resonator.", "<span class=\"section-number\">7.5.6. </span>Transformation of a fundamental Gauss mode into a doughnut mode with a spiral phase plate.", "<span class=\"section-number\">8.3.3. </span>Two holes interferometer.", "<span class=\"section-number\">7.5.5. </span>Unstable laser resonator.", "<span class=\"section-number\">5. </span>User defined functions.", "<span class=\"section-number\">7.1.1. </span>Young\u2019s experiment.", "<span class=\"section-number\">7.7.1. </span>Zernike aberrations.", "<span class=\"section-number\">4. </span>Command Reference.", "<span class=\"section-number\">8. </span>Computer practical.", "<span class=\"section-number\">7. </span>Examples.", "LightPipes for Python 2.1.5", "<span class=\"section-number\">2. </span>Installation.", "<span class=\"section-number\">1. </span>Introduction.", "<span class=\"section-number\">6. </span>Manual.", "<span class=\"section-number\">7.5.8. </span>Gauss TEM<sub>00</sub> mode described with geometric optics.", "<span class=\"section-number\">3. </span>Support."], "terms": {"A": [0, 2, 8, 9, 17, 20, 22, 24, 26, 27, 28, 29, 31, 36, 37, 38, 40, 42, 43], "two": [0, 8, 9, 13, 17, 18, 19, 29, 34, 36, 37, 38, 40, 41, 42, 43], "can": [0, 1, 3, 7, 8, 9, 13, 17, 18, 19, 23, 26, 28, 29, 31, 33, 34, 36, 37, 38, 40, 41, 42, 44], "substitut": [0, 36, 38], "cubic": [0, 38], "phase": [0, 8, 9, 13, 16, 17, 20, 23, 27, 31, 36, 39, 40, 41, 43, 44], 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"Self-healing Airy beam.": [[0, "self-healing-airy-beam"]], "Generation of a Bessel beam with a lens and an annular slit.": [[1, "generation-of-a-bessel-beam-with-a-lens-and-an-annular-slit"]], "Generation of a Bessel beam with an axicon.": [[2, "generation-of-a-bessel-beam-with-an-axicon"]], "Collimating the edge waves with a lens.": [[3, "collimating-the-edge-waves-with-a-lens"]], "Diaprojector (In Dutch).": [[4, "diaprojector-in-dutch"]], "Twee optica wetten.": [[4, "twee-optica-wetten"]], "Het maken van een afbeelding op een scherm.": [[4, "het-maken-van-een-afbeelding-op-een-scherm"]], "Uitvoering van het afbeeldingsexperiment (Niveau 1, basisonderwijs).": [[4, "uitvoering-van-het-afbeeldingsexperiment-niveau-1-basisonderwijs"]], "Meting van de brandpuntsafstand van de lens.": [[4, "meting-van-de-brandpuntsafstand-van-de-lens"]], "Bepaling van de plaats van het scherm.": [[4, "bepaling-van-de-plaats-van-het-scherm"]], "Uitvoering van het afbeeldingsexperiment (Niveau 2, voortgezet onderwijs, HBO, 1e jaars universiteit).": [[4, "uitvoering-van-het-afbeeldingsexperiment-niveau-2-voortgezet-onderwijs-hbo-1e-jaars-universiteit"]], "Stap voor stap uitvoering van het experiment.": [[4, "stap-voor-stap-uitvoering-van-het-experiment"]], "Meetfouten.": [[4, "meetfouten"]], "Appendix 1.": [[4, "appendix-1"]], "Diffraction from a circular aperture.": [[5, "diffraction-from-a-circular-aperture"]], "Laguerre doughnut modes.": [[6, "laguerre-doughnut-modes"]], "Fabry Perot interferometer.": [[7, "fabry-perot-interferometer"]], "Measurement of the distance between two wavelengths.": [[7, "measurement-of-the-distance-between-two-wavelengths"]], "Measurement of the refractive index of a medium.": [[7, "measurement-of-the-refractive-index-of-a-medium"]], "Questions about the Fabry Perot interferometer.": [[7, "questions-about-the-fabry-perot-interferometer"]], "Fresnel diffraction.": [[8, "fresnel-diffraction"]], "Fresnel diffraction, plane wavefront.": [[8, "fresnel-diffraction-plane-wavefront"]], "Fresnel diffraction, spherical wavefront.": [[8, "fresnel-diffraction-spherical-wavefront"]], "Questions about Fresnel diffraction.": [[8, "questions-about-fresnel-diffraction"]], "Fresnel zone plate.": [[9, "fresnel-zone-plate"]], "Demonstration of a GRIN lens.": [[10, "demonstration-of-a-grin-lens"]], "Young\u2019s experiment with GRIN lens.": [[11, "young-s-experiment-with-grin-lens"]], "Hermite Gauss modes.": [[12, "hermite-gauss-modes"]], "Interference of a doughnut laser beam: collinear beams.": [[13, "interference-of-a-doughnut-laser-beam-collinear-beams"]], "Interference of a doughnut laser beam: tilted beams.": [[14, "interference-of-a-doughnut-laser-beam-tilted-beams"]], "Laguerre Gauss modes.": [[15, "laguerre-gauss-modes"]], "Transformation of high order Gauss modes.": [[16, "transformation-of-high-order-gauss-modes"]], "From Hermite to Laguerre.": [[16, "from-hermite-to-laguerre"]], "From Laguerre to Hermite.": [[16, "from-laguerre-to-hermite"]], "Michelson interferometer.": [[17, "michelson-interferometer"]], "Multi- holes and slits.": [[18, "multi-holes-and-slits"]], "Newton rings.": [[19, "newton-rings"]], "Measurement of the radius of curvature of the lens.": [[19, "measurement-of-the-radius-of-curvature-of-the-lens"]], "Measurement of the refractive index of the film between the lens and the flat plate.": [[19, "measurement-of-the-refractive-index-of-the-film-between-the-lens-and-the-flat-plate"]], "Questions about Newton rings.": [[19, "questions-about-newton-rings"]], "Pattern recognition.": [[20, "pattern-recognition"]], "Phase recovery using Gerchberg Saxton iteration.": [[21, "phase-recovery-using-gerchberg-saxton-iteration"]], "Spot of Poisson.": [[22, "spot-of-poisson"]], "From Poisson spot to a non-diffractive Bessel beam.": [[23, "from-poisson-spot-to-a-non-diffractive-bessel-beam"]], "Propagation in a lens-like, absorptive medium.": [[24, "propagation-in-a-lens-like-absorptive-medium"]], "Radial shear interferometer.": [[25, "radial-shear-interferometer"]], "Internal reflection and refraction.": [[26, "internal-reflection-and-refraction"]], "Measurement of the refractive index of the medium.": [[26, "measurement-of-the-refractive-index-of-the-medium"]], "Questions.": [[26, "questions"]], "Shack Hartmann sensor.": [[27, "shack-hartmann-sensor"]], "Spherical wavefront.": [[28, "spherical-wavefront"]], "Irradiance dependency of a spherical wavefront.": [[28, "irradiance-dependency-of-a-spherical-wavefront"]], "Questions about the spherical wavefront.": [[28, "questions-about-the-spherical-wavefront"]], "Laser simulation, stable laser resonator.": [[29, "laser-simulation-stable-laser-resonator"]], "Transformation of a fundamental Gauss mode into a doughnut mode with a spiral phase plate.": [[30, "transformation-of-a-fundamental-gauss-mode-into-a-doughnut-mode-with-a-spiral-phase-plate"]], "Two holes interferometer.": [[31, "two-holes-interferometer"]], "Measurement of the wavelength.": [[31, "measurement-of-the-wavelength"]], "Measurement of the thickness of a thin film that covers one of the holes.": [[31, "measurement-of-the-thickness-of-a-thin-film-that-covers-one-of-the-holes"]], "Questions about Young\u2019s experiment.": [[31, "questions-about-young-s-experiment"]], "Unstable laser resonator.": [[32, "unstable-laser-resonator"]], "User defined functions.": [[33, "user-defined-functions"]], "User defined functions in a subdirectory of your Python scripts.": [[33, "user-defined-functions-in-a-subdirectory-of-your-python-scripts"]], "Make your functions part of your LightPipes for Python installation.": [[33, "make-your-functions-part-of-your-lightpipes-for-python-installation"]], "Your command should be an extension of LightPipes.": [[33, "your-command-should-be-an-extension-of-lightpipes"]], "Young\u2019s experiment.": [[34, "young-s-experiment"]], "Zernike aberrations.": [[35, "zernike-aberrations"]], "Command Reference.": [[36, "module-LightPipes"]], "Computer practical.": [[37, "computer-practical"]], "Introduction to computer practical.": [[37, "introduction-to-computer-practical"]], "Prepare your computer.": [[37, "prepare-your-computer"]], "Assignments.": [[37, "assignments"]], "Examples.": [[38, "examples"]], "Interference examples.": [[38, "interference-examples"]], "Diffraction examples.": [[38, "diffraction-examples"]], "Non-diffracting Airy beams.": [[38, "non-diffracting-airy-beams"]], "Non-diffractive Bessel beam.": [[38, "non-diffractive-bessel-beam"]], "Laser examples.": [[38, "laser-examples"]], "Phase recovery.": [[38, "phase-recovery"]], "Zernike aberration.": [[38, "zernike-aberration"]], "Graded index media GRIN.": [[38, "graded-index-media-grin"]], "Fourier optics.": [[38, "fourier-optics"]], "LightPipes for Python 2.1.5": [[39, "lightpipes-for-python-release"]], "contents:": [[39, "contents"]], "Installation.": [[40, "installation"]], "LightPipes  release notes.": [[40, "lightpipes-release-notes"]], "Known installation problems.": [[40, "known-installation-problems"]], "Using LightPipes with the pyFFTW package.": [[40, "using-lightpipes-with-the-pyfftw-package"]], "Introduction.": [[41, "introduction"]], "Credits.": [[41, "credits"]], "Manual.": [[42, "manual"]], "First steps.": [[42, "first-steps"]], "Starting the calculations.": [[42, "starting-the-calculations"]], "The dimensions of structures.": [[42, "the-dimensions-of-structures"]], "Apertures and screens.": [[42, "apertures-and-screens"]], "Graphing and visualisation.": [[42, "graphing-and-visualisation"]], "Free space propagation.": [[42, "free-space-propagation"]], "FFT propagation (spectral method).": [[42, "fft-propagation-spectral-method"]], "Direct integration as a convolution: FFT approach.": [[42, "direct-integration-as-a-convolution-fft-approach"]], "Direct integration.": [[42, "direct-integration"]], "Finite difference method.": [[42, "finite-difference-method"]], "Splitting and mixing beams.": [[42, "splitting-and-mixing-beams"]], "Interpolation.": [[42, "interpolation"]], "Phase and intensity filters.": [[42, "phase-and-intensity-filters"]], "Zernike polynomials.": [[42, "zernike-polynomials"]], "Spherical coordinates.": [[42, "spherical-coordinates"]], "User defined phase and intensity filters.": [[42, "user-defined-phase-and-intensity-filters"]], "Random filters.": [[42, "random-filters"]], "FFT and spatial filters.": [[42, "fft-and-spatial-filters"]], "Laser amplifier.": [[42, "laser-amplifier"]], "Diagnostics.": [[42, "diagnostics"]], "Strehl ratio.": [[42, "strehl-ratio"]], "Beam power.": [[42, "beam-power"]], "Field normalization.": [[42, "field-normalization"]], "Centroid.": [[42, "centroid"]], "Beam width.": [[42, "beam-width"]], "D4\\sigma": [[42, "d4-sigma"]], "References": [[42, "references"]], "Gauss TEM00 mode described with geometric optics.": [[43, "gauss-tem00-mode-described-with-geometric-optics"]], "ABCD matrix formulation to describe the propagation of rays.": [[43, "abcd-matrix-formulation-to-describe-the-propagation-of-rays"]], "Eigen values and eigen vectors (eigen rays)": [[43, "eigen-values-and-eigen-vectors-eigen-rays"]], "Collection of rays that can be confined to the resonator": [[43, "collection-of-rays-that-can-be-confined-to-the-resonator"]], "Second moments": [[43, "second-moments"]], "Wavefront radius": [[43, "wavefront-radius"]], "Brightness": [[43, "brightness"]], "Get the constant c": [[43, "get-the-constant-c"]], "Support.": [[44, "support"]]}, "indexentries": {"self-healing airy beam": [[0, "index-0"]], "diaprojector": [[4, "index-0"]], "begin": [[5, "index-0"], [8, "index-0"], [17, "index-0"], [22, "index-0"], [28, "index-0"], [34, "index-0"], [35, "index-0"], [38, "index-0"], [38, "index-1"], [38, "index-2"]], "circaperture": [[5, "index-0"], [8, "index-0"], [28, "index-0"], [34, "index-0"], [35, 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\ No newline at end of file
diff --git a/docs/support.html b/docs/support.html
index 6a90245..e1a2793 100644
--- a/docs/support.html
+++ b/docs/support.html
@@ -146,7 +146,7 @@ <h1><span class="section-number">3. </span>Support.<a class="headerlink" href="#
 
   <div role="contentinfo">
     <p>&#169; Copyright 2017, Fred van Goor.
-      <span class="lastupdated">Last updated on Aug 05, 2024.
+      <span class="lastupdated">Last updated on Aug 06, 2024.
       </span></p>
   </div>