Projects in this Layer
D2NN Physical Feasibility Evaluator
Angular Spectrum Method propagation engine with five quantitative physical checks — band-limit, energy conservation, photon budget, SNR, Monte Carlo fabrication tolerance. Bridges the gap between trained simulation and fabricable device.
SWG-MMI Mode Demultiplexer
Analytical simulation of a broadband SOI mode demultiplexer — EMT, EIM, MMI self-imaging, full 2D field reconstruction across 1.40–1.70 µm. Validated against Lumerical FDTD; scripts available upon request.
BIC Photonic Cell Sensor
Bound-state-in-the-continuum Si nanocube resonator (Q > 1000) for label-free cancer vs. non-cancer cell detection. Full pipeline: FTIR → Kramers–Kronig → COMSOL FDTD → PCA+SVM classifier. Exploits the unique linewidth of qBIC modes for refractive-index sensing.
FDTD Active Plasmonics
Semiclassical Maxwell-Bloch FDTD solver for gain-modulated plasmonic structures. Lorentz-Drude gold model + optical Bloch equations. Simulates MSM waveguides and microcavities; ~60% resonance amplitude increase with nanoparticle-enhanced gain.
Slavcheva Maxwell-Bloch FDTD
Faithful, auditable reproduction of the Slavcheva et al. semiclassical FDTD framework. 1D Yee grid, Mur ABC, predictor-corrector Bloch integrator. Reproduces VCSEL gain saturation and lasing at 850 nm and 1.29 μm.
Photonic Crystal All-Optical Logic Gates
COMSOL 2D PhC FDTD simulation of NOT, AND, OR gates at λ = 1.55 μm. Linear interference mechanism — no nonlinear material required. Based on Rani et al. 2015 geometry. Validates published transmission spectra and field distributions.
Coupled QW Valence Band
Luttinger-Kohn 4×4 Hamiltonian solver for GaAs/Al₀.₅Ga₀.₅As double quantum well (25 Å wells, 15 Å barrier, ΔE_v = 0.25 eV). HH/LH subband dispersion and Gaussian wavepacket dynamics. Demonstrates HH–LH anti-crossing and inter-well tunnelling.