238 citations · 381 across the 10 of their papers we have counts for
10 papers
Loss compensation and super-resolution with excitations at complex frequencies
Seunghwi Kim, Yu-Gui Peng, Simon Yves +1
Abbe diffraction limit fundamentally bounds the resolution of conventional optical imaging and spectroscopic systems. Along the years, several schemes have been introduced to overc…
Beyond Bounds on Light Scattering with Complex Frequency Excitations
Seunghwi Kim, Sergey Lepeshov, Alex Krasnok +1
Light scattering is one of the most established wave phenomena in optics, lying at the heart of light-matter interactions and of crucial importance for nanophotonic applications. P…
Dynamic suppression of Rayleigh light scattering in dielectric resonators
Seunghwi Kim, Jacob M. Taylor, Gaurav Bahl
The ultimate limits of performance for any classical optical system are set by sub-wavelength fluctuations within the host material, that may be frozen-in or even dynamically induc…
Breaking time-reversal symmetry with acoustic pumping of nanophotonic circuits
Donggyu B Sohn, Seunghwi Kim, Gaurav Bahl
Achieving non-reciprocal light propagation via stimuli that break time-reversal symmetry, without magneto-optics, remains a major challenge for integrated nanophotonic devices. Rec…
A quasi-mode theory of chiral phonons
Xunnong Xu, Seunghwi Kim, Gaurav Bahl +1
The coherence properties of mechanical resonators are often limited by multiple unavoidable forms of loss -- including phonon-phonon and phonon-defect scattering -- which result in…
Complete linear optical isolation at the microscale with ultralow loss
JunHwan Kim, Seunghwi Kim, Gaurav Bahl
Low-loss optical isolators and circulators are critical nonreciprocal components for signal routing and protection, but their chip-scale integration is not yet practical using stan…
Dynamically induced robust phonon transport and chiral cooling in an optomechanical system
Seunghwi Kim, Xunnong Xu, Jacob M. Taylor +1
The transport of sound and heat, in the form of phonons, can be limited by disorder-induced scattering. In electronic and optical settings the introduction of chiral transport, in…
Role of Optical Density of States in Two-mode Optomechanical Cooling
Seunghwi Kim, Gaurav Bahl
Dynamical back-action cooling of phonons in optomechanical systems having one optical mode is well studied. Systems with two optical modes have the potential to reach significantly…
Brillouin Cooling in a Linear Waveguide
Yin-Chung Chen, Seunghwi Kim, Gaurav Bahl
Brillouin scattering is not usually considered as a mechanism that can cause cooling of a material due to the thermodynamic dominance of Stokes scattering in most practical systems…
Giant Gain Enhancement in Surface-Confined Resonant Stimulated Brillouin Scattering
Nathan Dostart, Seunghwi Kim, Gaurav Bahl
The notion that Stimulated Brillouin Scattering (SBS) is primarily defined by bulk material properties has been overturned by recent work on nanoscale waveguides. It is now underst…