246 citations · 725 across the 24 of their papers we have counts for
24 papers
Non-Hermitian skin effect and lasing of absorbing open-boundary modes in photonic crystals
Tetsuyuki Ochiai
We explore absorbing open-boundary modes in non-Hermitian photonic systems. The modes have a continuum spectrum in the infinite system-size limit and can exhibit the non-Hermitian…
Electrostatics of optical rectification in metallic particles
Tetsuyuki Ochiai
We present an electrostatic theory of the optical rectification, namely, the static photovoltage or photocurrent generation under a light illumination, in metallic particles. The h…
Discovery of CCS Velocity-Coherent Substructures in the Taurus Molecular Cloud 1
Kazuhito Dobashi, Tomomi Shimoikura, Tetsu Ochiai +4
We present the results of mapping observations toward a nearby starless filamentary cloud, the Taurus Molecular Cloud 1 (TMC-1), in the CCS(JN=43-32, 45.379033 GHz) emission line,…
Su-Schrieffer-Heeger-type Floquet network
Tetsuyuki Ochiai
A network model that can describe light propagation in one-dimensional ring-resonator arrays with a dimer structure is studied as a Su-Schrieffer-Heeger-type Floquet network. The m…
Hybrid method of plane-wave and cylindrical-wave expansions for distributed Bragg-reflector pillars: formalism and its application to topological photonics
Tetsuyuki Ochiai
A hybrid computational method of plane-wave and cylindrical-wave expansions for distributed Bragg-reflector (DBR) pillars is proposed. The plane-wave expansion is employed to repre…
Enhanced second harmonic generation and photon drag effect in a doped graphene placed on a two-dimensional diffraction grating
Tetsuyuki Ochiai
We theoretically investigate the second harmonic generation and photon drag effect induced by an incident plane wave to a doped graphene placed on a two-dimensional diffraction gra…