832 citations · 3.1k across the 39 of their papers we have counts for
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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…