417 citations · 1k across the 15 of their papers we have counts for
15 papers
The Control of the Oscillation Threshold with Asymmetric Gain in Operational Amplifiers
Sungmook Kang, Heeso Noh
We have observed the quench of the lasing at the exceptional point in the electronic circuit system by applying asymmetric gain in the coupled oscillator. Since there is the analog…
Investigation of Polarization-Dependent Optical Force in Optical Tweezers using Generalized Lorenz-Mie Theory
Jai-Min Choi, Heeso Noh
In vectorial diffraction theory, tight focusing of a linearly polarized laser beam produces an anisotropic field distribution around the focal plane. We present a numerical investi…
Broadband subwavelength focusing of light using a passive drain
Heeso Noh, Sebastien M. Popoff, Hui Cao
Optical absorption is usually considered deleterious, something to avoid if at all possible. We propose a broadband nanoabsorber that completely eliminates the diffracting wave, re…
Position-dependent diffusion of light in disordered waveguides
Alexey G. Yamilov, Raktim Sarma, Brandon Redding +3
Diffusion has been widely used to describe a random walk of particles or waves, and it requires only one parameter -- the diffusion constant. For waves, however, diffusion is an ap…
Perfect coupling of light to surface plasmons by coherent absorption
Heeso Noh, Yidong Chong, A. Douglas Stone +1
We show theoretically that coherent light can be completely absorbed in a two-dimensional or three-dimensional metallic nanostructure by matching the frequency and field pattern of…
Localized photonic bandedge modes and orbital angular momenta of light in a golden-angle spiral
Seng Fatt Liew, Heeso Noh, Jacob Trevino +2
We present a numerical study on photonic bandgap and bandedge modes in the golden-angle spiral array of air cylinders in dielectric media. Despite the lack of long-range translatio…