14 citations · 42 across the 7 of their papers we have counts for
7 papers
Transformation cavities with a narrow refractive index profile
Jung-Wan Ryu, Jinhang Cho
Recently, gradient index cavities, or so-called transformation cavities, designed by conformal transformation optics have been studied to support resonant modes with both high Q-fa…
Circle-shaped Transformation Cavity via Center-Shift Möbius Transfomation
Jinhang Cho, Inbo Kim, Sunghwan Rim +3
Circle-shaped transformation cavities of shifted center are the most simple transformation cavities in the sense that they have only spatial index variation without boundary shape…
Boundary integral equation method for resonances in gradient index cavities designed by conformal transformation optics
Jung-Wan Ryu, Jinhang Cho, Soo-Young Lee +5
In the case of two-dimensional gradient index cavities designed by the conformal transformation optics, we propose a boundary integral equation method for the calculation of resona…
Optimization of conformal whispering gallery modes in limaçon-shaped transformation cavities
Jung-Wan Ryu, Jinhang Cho, Inbo Kim +1
In limaçon-shaped gradient index dielectric cavities designed by conformal transformation optics, the variation of Q-factors and emission directionality of resonant modes was trace…
Terahertz beat freuquency generation from two-mode lasing operation of coupled microdisk laser
Jung-Wan Ryu, Jinhang Cho, Chil-Min Kim +2
We propose a coupled microdisk laser as a compact and tunable laser source for the generation of a coherent continuous wave THz radiation by photomixing. Using the Schrödinger-Bloc…
Dynamics of Morphology-Dependent Resonances by Openness in Dielectric Disk for TE polarization
Jinhang Cho, Sunghwan Rim, Chil-Min Kim
We have studied the dynamics of morphology-dependent resonances by openness in a dielectric microdisk for TE polarization. For the first time, we report that the dynamics exhibits…
Outer Resonances and Effective Potential Analogy in Two-Dimensional Dielectric Cavities
Jinhang Cho, Inbo Kim, Sunghwan Rim +2
Outer resonances are studied as one type of quasinormal modes in two-dimensional dielectric cavities with refractive index . The outer resonances can be verified as the resona…