Helmholtz-based Adjoint method

Simulation code used in "Fast free-form phase mask design for three-dimensional photolithography using convergent Born series".

• target material: PDMS + TiO2 + Microchem SU-8 2000 layered material
• test code: Vanilla inverse solver/ADJOINT_EXAMPLE.m

prerequisite

• matlab (Test in 2022b - 2024b)
• Parallel computering Toolbox
• Optimization Toolbox
• Signal Processing Toolbox
• Curve Fitting Toolbox
• yaml

installation

git is required to download and call database. Then, type the following commands in powershell(windows) or terminal(linux):

cd "~~~" # type the absolute path of directory to store the repository
# loading main repository
git clone https://github.com/ehgus/Helmholtz-adjoint-solver.git
cd Helmholtz-adjoint-solver
# loading refractive index database
git submodule init 
git submodule update

You should have matlab and required packages to execute test suites.

Name convention

The name convention refers to julia's reference style guide.

• module, class: capitalization and camel case: ForwardSimulation. When a word is next to the abbreivation, you can use small word (FDTDsolver).
• function, method: lowercase with multiple words squashed together (isequal,haskey). When necessary, use underscores as word separators.
• conciseness is valued, but avoid abbreviation (index rather than i).
• It is allowed to use capital letter exceptionally when using a proper noun or a abbreivation.