The growing maturity of nanofabrication has ushered massive sophisticated optical
structures available on a photonic chip. The integration of subwavelength-structured …

Recent advancements in computational inverse-design approaches—algorithmic
techniques for discovering optical structures based on desired functional characteristics …

Recently, integrated optics has gained interest as a hardware platform for implementing
machine learning algorithms. Of particular interest are artificial neural networks, since matrix …

Integrated photonics, because of its intrinsic high speed, large bandwidth and unlimited
parallelism, is critical in the drive to ease the increasing data traffic. Its technological enabler …

The development of inverse design, where computational optimization techniques are used
to design devices based on certain specifications, has led to the discovery of many compact …

Gradient-based inverse design in photonics has already achieved remarkable results in
designing small-footprint, high-performance optical devices. The adjoint variable method …

We present an adjoint-based optimization for electromagnetic design. It embeds commercial
Maxwell solvers within a steepest-descent inverse-design optimization algorithm. The …

We describe S4, a free implementation of the Fourier modal method (FMM), which has also
been commonly referred to as rigorous coupled wave analysis (RCWA), for simulating …

We investigate the performance of bends and splitters in metal-dielectric-metal
subwavelength plasmonic waveguides. We show that bends and splitters with no additional …

We demonstrate theoretically the existence of one-way electromagnetic modes in a
waveguide formed between a semi-infinite photonic crystal structure and a semi-infinite …