1.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Institute for Basic ScienceKR86 papers
- Seoul National UniversityKR79 papers
- Korea University of Science and TechnologyKR57 papers
- Kyungpook National UniversityKR52 papers
- Sejong UniversityKR51 papers
- Korea UniversityKR48 papers
- Korea Advanced Institute of Science and TechnologyKR37 papers
- Ewha Womans UniversityKR36 papers
- Sungkyunkwan UniversityKR35 papers
- The University of TokyoJP35 papers
- Yale UniversityUS30 papers
- Chung-Ang UniversityKR29 papers
12 papers · 1 filter
Topological Switching via Exceptional Point Pairs in an Optical Microcavity Laser
Kyu-Won Park, KyeongRo Kim, Jinuk Kim +2
Conventional mode switching mechanisms, which rely on dynamically encircling exceptional points (EPs) through non-adiabatic transitions (NATs), suffer from intrinsic nonlinear dyna…
Single-gate electro-optic beam switching metasurfaces
Sangjun Han, Jinseok Kong, Junho Choi +2
Electro-optic active metasurfaces have attracted attention due to their ability to electronically control optical wavefront with unprecedented spatiotemporal resolutions. In most s…
Optical and Raman spectroscopies of 171Yb3+:Y2SiO5 hyperfine structure for application toward microwave-to-optical transducer
Hee-Jin Lim, Ga-Hyun Choi, Ki Suk Hong
This study analyzed the optical techniques for high resolution, low-noise spectroscopy of a hyperfine structure (HFS) made of ytterbium-isotope 171 ions (:$…
Programmable spectral shaping to improve the measurement precision of frequency comb mode-resolved spectral interferometric ranging
Yoon-Soo Jang, Sunghoon Eom, Jungjae Park +1
Comb-mode resolved spectral domain interferometry (CORE-SDI), which is capable of measuring length of kilometers or more with precision on the order of nanometers, is considered to…
Robust frequency stabilization and linewidth narrowing of a laser with large intermittent frequency jumps using an optical cavity and an atomic beam
Won-Kyu Lee, Chang Yong Park, Myoung-Sun Heo +2
An experimental method is developed for the robust frequency stabilization using a high-finesse cavity when the laser exhibits large intermittent frequency jumps. This is accomplis…
Antenna enhanced infrared photoinduced force imaging in aqueous environment with super-resolution and hypersensitivity
Jian Li, Jie Pang, Zhen-dong Yan +6
Tip enhanced IR spectra and imaging have been widely used in cutting-edge studies for the in-depth understanding of the composition, structure and function of interfaces at the nan…
Characterization of single photon sources for radiometry applications at room temperature
Hee-Jin Lim, Dong-Hoon Lee, In-ho Bae +5
A single photon source with high repeatability and low uncertainties is the key element for few-photon metrology based on photon numbers. While low photon number fluctuations and h…
Tip enhanced IR imaging with sub-10 nm resolution and hypersensitivity
Jian Li, Junghoon Jahng, Jie Pang +6
IR spectroscopy has been widely used for chemical identification and quantitative analysis of reactions occurring in a specific time and space domains by measuring an average signa…
Metamaterial Perfect Absorber Analyzed by a Meta-cavity Model Consisting of Multilayer Metasurfaces
Khagendra Bhattarai, Sinhara Silva, Kun Song +4
We demonstrate that the metamaterial perfect absorber behaves as a meta-cavity bounded between a resonant metasurface and a metallic thin-film reflector. The perfect absorption is…
Experimental Observation of Bohr's Nonlinear Fluidic Surface Oscillation
Songky Moon, Younghoon Shin, Hojeong Kwak +4
Niels Bohr in the early stage of his career developed a nonlinear theory of fluidic surface oscillation in order to study surface tension of liquids. His theory includes the nonlin…
Fiber-diffraction Interferometer using Coherent Fiber Optic Taper
Hagyong Kihm, Yun-Woo Lee
We present a fiber-diffraction interferometer using a coherent fiber optic taper for optical testing in an uncontrolled environment. We use a coherent fiber optic taper and a singl…
Observation of an exceptional point in a chaotic optical microcavity
Sang-Bum Lee, Juhee Yang, Songky Moon +5
We present spectroscopic observation of an exceptional point or the transition point between diabatic crossing and avoided crossing of neighboring quasi-eigenmodes in a chaotic opt…