Example Notebooks

Check the notebooks in the menu.

• Example notebook for generating masks with pyMOE
  • Circular aperture
  • Rectangular aperture
  • Fresnel Zone Plate
  • Fresnel phase mask
  • Generate phase mask from arbitrary phase function
  • Generate Alvarez Lenses
  • Operations between masks
  • Extra: Zernike polynomials mask
• Example notebook for generating masks for metasurfaces with pyMOE
  • Selection of diameters + phases
  • Hexagonal grid metasurface
  • Extra: Large metasurface with pre defined library (Yu et al. 2013)
  • Extra: merge layers in .gds metasurface file
• Example notebook for import-export operations with pyMOE
  • Export a created mask using gdsconverter
  • Convert phase mask to height map
  • Export mask to gds and dxf files
  • Convert height map dxf file to grayvalue from calibration lookup table
  • Transform layered .gds file into a grayscale image
  • Transform grayscale image into (binary) dithered image
  • Transform binary image file into single layered .gds file
  • Extra: Merging shapes in the single layer .gds file
• Example notebook for operations with .gds files with pyMOE
  • Preliminary: Generate a Fresnel Phase Mask
  • Operations with/on .gds files
• Example notebook for holographic phase mask generator
  • Loading target image
  • Calculating hologram phase mask using Gerchberg Saxton Algorithm
  • Creating aperture from calculated phase mask
  • Create GDS layout from calculated phase mask
• Example notebook for implementing numerical propagation using propagate module
  • Propagation from a circular aperture
    • Propagate field using Angular Spectrum Method
  • Propagation from a Fresnel multilevel mask example #1
    • Create the Fresnel aperture
    • Propagate XY using Rayleigh-Sommerfeld and Bluestein
    • Propagate YZ using Rayleigh-Sommerfeld
    • Propagate XYZ volume with Bluestein
    • Compare ZZ between RS and Bluestein propagation
    • Speed up RS propagation using small bins
  • Propagation of square apertures
    • Propagate with ASM
    • Propagate with Bluestein
    • Propagate field and calculate in plane YZ, using npix bins in Y
    • Band limited ASM
    • ASM with Chirp Z-Transform
    • Propagation with Scalable Angular Spectrum Method propagation
  • Propagation from a Fresnel Zone Plate
    • Propagate with RS
    • Propagate with Bluestein
    • Compare RS and Bluestein propagations
  • Spiral Phase Plate
  • Alvarez Lenses Pair
    • Compare RS and Bluestein
  • Dammann Gratings
    • 2D Dammann Grating
      • Propagation with RS integral
      • Propagation with ASM method
      • Simulation of a subsection of the image plane
      • ASM with CZT
      • ASM with band limits
      • Propagation with Scalable ASM
      • Propagation with Bluestein
    • 1D Dammann Grating
  • Angular Spectrum Method and Scalable Angular Spectrum Method Validation
  • Propagation from Computer Generated Holograms
    • Propagation of Holograms with RS integral
    • Propagation of Holograms with Bluestein
    • Multilevel GS holograms
  • Near Field: Nanojet generation from a circular aperture illuminated by a Gaussian Beam
    • Propagate with RS
    • Propagate with Bluestein
    • Propagate the field from a circular aperture illuminated by a tightly focused Gaussian Beam
  • Evaluation of Oblique Incidence fields
    • Propagation with RS
    • Propagation with Bluestein XY YZ
  • Propagation through two lenses
    • Manually propagate through two sequential apertures
    • Use the ensemble class
• Example notebook for optimizer module
  • Initializations
    • Optimization framework
  • Optimization with logging
    • Optimization with different forward propagators
      • Bluestein (default)
      • ASM
      • SASM
    • Loss function engineering
    • Target re-definition
    • Other optimizer algorithms
      • Optimization with optax module optimizers
    • Bounds during optimization
  • Hologram creation via inverse design
    • Binary hologram
      • Binary hologram inverse design via MSE loss function
      • Improving uniformity for the binary hologram inverse design via loss function engineering
      • Binary hologram inverse design via Negative Peason Correlation Coefficient (NPCC) loss function
    • Grayscale hologram
      • Grayscale hologram generation with MSE loss function
      • Grayscale hologram generation with NPCC loss function
  • Optimization of ensembles of optical elements
• Metrics notebook
  • Point Spread Function (PSF)
  • Optical Transfer Function (OTF)
  • Modulation Transfer Function (MTF) and Phase Transfer Function (PTF) & Strehl ratio
  • Encircled energy
  • Ensquared energy
  • Focusing Efficiency
  • Optical Performance Metric (OPM)
  • Comparisons to theoretical (analytical)