198 citations · 574 across the 7 of their papers we have counts for
7 papers
Anisotropic subwavelength grating perturbation enables zero crosstalk in a leaky mode
Md Faiyaz Kabir, Md Borhan Mia, Ishtiaque Ahmed +3
Electromagnetic coupling via either exponentially decaying evanescent field or radiative wave is a primary characteristic of light, allowing optical signal/power transfer but limit…
Exceptional points in lossy media enable decay-free wave propagation
Alexander Yulaev, Sangsik Kim, Qing Li +4
Waves entering a spatially uniform lossy medium typically undergo exponential decay, arising from either the energy loss of the Beer-Lambert-Bouguer transmission law or the evanesc…
Exceptional coupling in extreme skin-depth waveguides for extremely low waveguide crosstalk
Md Borhan Mia, Syed Z. Ahmed, Ishtiaque Ahmed +3
Photonic chips can miniaturize complicate optical systems very tiny and portable, providing versatile functionalities for many optical applications. Increasing the photonic chip in…
Phased-Locked Two-Color Single Soliton Microcombs in Dispersion-Engineered Si3N4 Resonators
Gregory Moille, Qing Li, Sangsik Kim +2
We propose and theoretically investigate a dispersion-engineered Si3N4 microring resonator, based on a cross-section containing a partially-etched trench, that supports phase-locke…
Photonic waveguide mode to free-space Gaussian beam extreme mode converter
Sangsik Kim, Daron A. Westly, Brian J. Roxworthy +4
Integration of photonic chips with atomic, micromechanical, chemical and biological systems can advance science and open many possibilities in chip-scale devices and technology. Co…
Controlling evanescent waves using silicon photonic all-dielectric metamaterials for dense integration
Saman Jahani, Sangsik Kim, Jonathan Atkinson +11
Ultra-compact, densely integrated optical components manufactured on a CMOS-foundry platform are highly desirable for optical information processing and electronic-photonic co-inte…
Frequency Comb Generation in 300 nm Thick SiN Concentric-Racetrack-Resonators: Overcoming the Material Dispersion Limit
Sangsik Kim, Kyunghun Han, Cong Wang +7
Kerr nonlinearity based frequency combs and solitons have been generated from on-chip optical microresonators with high quality factors and global or local anomalous dispersion. Ho…