Free-form optimization of nanophotonic devices: from classical methods to deep learning
Nanophotonic devices have enabled microscopic control of light with an unprecedented
spatial resolution by employing subwavelength optical elements that can strongly interact …
spatial resolution by employing subwavelength optical elements that can strongly interact …
Structural optimization of a one-dimensional freeform metagrating deflector via deep reinforcement learning
The increasing demand on a versatile high-performance metasurface requires a freeform
design method that can handle a huge design space, which is many orders of magnitude …
design method that can handle a huge design space, which is many orders of magnitude …
Towards subwavelength pixels: nanophotonic color routers for ultra-compact high-efficiency CMOS image sensors
The proliferation of smartphones and the widespread use of camera modules necessitate
complementary metal-oxide-semiconductor (CMOS) image sensors with high pixel density …
complementary metal-oxide-semiconductor (CMOS) image sensors with high pixel density …
Sample-efficient inverse design of freeform nanophotonic devices with physics-informed reinforcement learning
Finding an optimal device structure in the vast combinatorial design space of freeform
nanophotonic design has been an enormous challenge. In this study, we propose physics …
nanophotonic design has been an enormous challenge. In this study, we propose physics …
[HTML][HTML] Adjoint method in machine learning: a pathway to efficient inverse design of photonic devices
Innovative machine learning techniques have facilitated the inverse design of photonic
structures for numerous practical applications. Nevertheless, the quantity of data and the …
structures for numerous practical applications. Nevertheless, the quantity of data and the …
Design parameters of free-form color splitters for subwavelength pixelated image sensors
Metasurface-based color splitters are emerging as next-generation optical components for
image sensors, replacing classical color filters and microlens arrays. In this work, we report …
image sensors, replacing classical color filters and microlens arrays. In this work, we report …
Analytic approach to study a hybrid plasmonic waveguide-fed and numerically design a nano-antenna based on the new director
In this paper, a wideband InP-based hybrid plasmonic nano-antenna (HPNA) operating at
telecommunication wavelengths has been proposed. Monolithically integrating InP-based …
telecommunication wavelengths has been proposed. Monolithically integrating InP-based …
An efficient neural optimizer for resonant nanostructures: Demonstration of highly-saturated red silicon structural color
Freeform nanostructures have the potential to support complex resonances and their
interactions, which are crucial for achieving desired spectral responses. However, the …
interactions, which are crucial for achieving desired spectral responses. However, the …
Physics-informed reinforcement learning for sample-efficient optimization of freeform nanophotonic devices
In the field of optics, precise control of light with arbitrary spatial resolution has long been a
sought-after goal. Freeform nanophotonic devices are critical building blocks for achieving …
sought-after goal. Freeform nanophotonic devices are critical building blocks for achieving …
High-efficiency unidirectional vertical emitter achieved by an aperture-coupling nanoslot antenna array
Coupling light from in-plane guided light into free space or optical fibers is crucial for many
photonic integrated circuits and vice versa. However, traditional grating couplers or …
photonic integrated circuits and vice versa. However, traditional grating couplers or …