SMD Tool
A free optics software to help engineers build and simulate metalenses 13000x faster than FDTD.
Designing a metalens was labor-intensive, primarily because of the large number of unitcells. Simulating a metalens using FDTD poses another challenge since it requires a substantial amount of computing power and time, hours or days depending on lens size.
SMD Tool (Simple Metalens Design Tool) was developed to remove these barriers and help researchers, students, or anyone new to the field realize their ideas or get familiar with the technology.
Release Notes
v1.29.00 Apr 14, 2024
Unitcell Arranger
Decimal precision modified
Lens Simulator
New feature: Imaging Mode.
Focusing Mode
Bug fix
y resolution customizable
UI simplified
v1.28.00 Mar 17, 2024
Target Phase Generator
Both extra and target phases are exported
Unitcell Arranger
Sign convention of unitcell phase changed so users can directly use the phase of S-parameter S21
Minor improvements
Lens Simulator
Notification message changed regarding subwavelength requirement
v1.27.70 Mar 3, 2024
Unitcell Arranger
Crash issue fixed
Option to arrange unitcells for a single polarization (Pol X), providing up to 2X faster processing for polarization-independent lenses
Lens Simulator
A single polarization (Pol X) can be simulated, providing results up to 2X faster for polarization-independent lenses
Simulation ranges are now adjustable (Iy and Iyz)
Intensity data (Iy and Iyz) export are now available for metalens arrays
Minor improvements
v1.27.21 Feb 25, 2024
Target Phase Generator
Bug fix: entered L/p was not read as an integer in some cases
Improved display of decimals in file names of Large Lens data
v1.27.20 Feb 23, 2024
General
Minor improvements
Lens Simulator
New feature: simulation of metalens arrays (i.e. fly-eye lenses)
Exported intensity values are rounded, leading to smaller file sizes of .csv
v1.27.00 Feb 10, 2024
Target Phase Generator
New feature: extremely large dataset (>> 1 million unitcells) can be processed in Large Lens mode
Processing time now gets notified
Default setting of 'Export phase data' changed to True
'µm' notation added for focal spot position (xf, yf) in UI
Unitcell Arranger
New feature: extremely large dataset (Large Lens) is processed with enhanced memory efficiency
Processing time now gets notified
% progress is now displayed during GDS generation
Processing speed and memory efficiency improved
Minor improvements
v1.26.01 Jan 21, 2024
Bug fix: For versions 1.25.01 through 1.26.00, Unitcell Arranger didn't run processing or incorrect unitcells could have been arranged if the transmittance range in Unitcell Arrangement Criteria was smaller than the transmittance range in the unitcell data (.csv). Versions v1.25.00 and older are unaffected by this bug.
v1.26.00 Jan 13, 2024
Main Interface
Visual description simplified
Lens Simulator
New feature: Simulation with circular lens aperture
Intensity computation ranges and resolution modified
Focus is traced at oblique incidence and displayed on yz-plane
Focusing efficiency calculation disabled for focal spots near the lens edge
UI simplified
v1.25.24 Jan 1, 2024
Lens Simulator
Allows output of simulated intensity data along y-axis and on yz-plane for post-processing by users.
Minor improvements.
v1.25.23. Dec 26, 2023
Lens Simulator
Faster simulation with optimized computation ranges for reduced xy- and yz-planes.
Focal diameter (circular area) is used to obtain focusing efficiency for small Gaussian beams.
Minor improvements.
v1.25.22. Nov 12, 2023
UI modified.
Refractive index (n) is added to file names when saving data.
Minor improvements.
v1.25.20. Oct 19, 2023
Lens Simulator
New features: focusing efficiency & FWHM are provided.
1D intensity plots are now displayed along the y-direction at all incidence angles (previously along x-direction only at normal incidence).
Minor improvements.
v1.25.10. Oct 6, 2023
Lens Simulator new feature
Beam diameter of Gaussian incident light is now customizable.
v1.25.01. Oct 3, 2023
Unitcell Arranger
Improved UI stability, unitcell arrangement speed, and memory efficiency.
Lens Simulator:
improved memory efficiency.
v1.25.00. Oct 1, 2023
Lens Simulator new features
Intensity simulation along the optics-axis (yz-plane).
1D intensity plot along the x-axis.
Customize simulation settings such as accuracy, plot resolution, and plot area.
Customize incident angle and refractive index of incident medium.
Different intensity profiles of incident light (uniform or Gaussian).
Keyboard shortcuts added.
Last updated