Junsuk Rho

TL;DR: A strong photonic SHE resulting in a measured large splitting of polarized light at metasurfaces is reported, which may provide a route for exploiting the spin and orbit angular momentum of light for information processing and communication.

TL;DR: A strategy for synthesizing chiral gold nanoparticles that involves using amino acids and peptides to control the optical activity, handedness and chiral plasmonic resonance of the nanoparticles is developed and it is anticipated that this strategy will aid in the rational design and fabrication of three-dimensional chiral nanostructures for use in plAsmonic metamaterial applications.

TL;DR: The experimentally demonstrated optical switching effect of handedness switching in metamaterials, a new class of custom-designed composites with deep subwavelength building blocks, in response to external optical stimuli allows electromagnetic control of the polarization of light.

TL;DR: The spherical hyperlens is designed with flat hyperbolic dispersion that supports wave propagation with very large spatial frequency and yet same phase speed, which allows it to resolve features down to 160 nm, much smaller than the diffraction limit at visible wavelengths.

TL;DR: In this paper, a three-dimensional metal-dielectric optical cavity with an ultra-high optical index of 17.4 was reported, and the resonant frequency of the cavity is constant and independent of its size.