activity
20192024
most citedGeneration of high-quality terahertz OAM mode based on soft-aperture difference frequency generation

58 citations · 159 across the 8 of their papers we have counts for

collaborators

8 papers

physics.optics2024★ 1 cited

Nano-Focusing of Vortex Beams with Hyperbolic Metamaterials

Wenhao Li, Jacob LaMountain, Evan Simmons +7

The synergy of judiciously engineered nanostructures and complex topology of light creates unprecedented opportunities for tailoring light-matter interactions on the nanoscale. Ele…

quant-ph2023

Higher-order Bloch spheres: A generalized representation of electron spin states with azimuthal phase factor

Sota Sato, Toshiki Matsumoto, Yuichiro Nakano +4

Using the similarity between spin states on the Bloch sphere (BS) and polarization states on the Poincare sphere (PS), we construct higher-order spin states on the higher-order BS…

physics.optics2021★ 10 cited

Propagation-invariant vortex Airy beam whose singular point follows its main lobe

Masato Suzuki, Keisaku Yamane, Takashige Omatsu +1

We propose and demonstrate a novel vortex Airy beam which is a superposition of an Airy beam and its laterally sheared beam with a phase shift. This new-type of vortex Airy b…

physics.optics2020★ 55 cited

Broadband high-resolution terahertz single-pixel imaging

Adam Vallés, Jiahuan He, Seigo Ohno +2

We report a simple single-pixel imaging system with a low mean squared error in the entire terahertz frequency region (3-13 THz) that employs a thin metallic ring with a series of…

cond-mat.mtrl-sci2020★ 16 cited

Investigation of laser-induced-metal phase of and its contact property via scanning gate microscopy

Kohei Sakanashi, Hidemitsu Ouchi, Kota Kamiya +8

Although semiconductor to metal phase transformation of MoTe by high-density laser irradiation of more than 0.3 MW/cm has been reported, we reveal that the laser-induce…

physics.optics2019★ 58 cited

Generation of high-quality terahertz OAM mode based on soft-aperture difference frequency generation

Katsuhiko Miyamoto, Kazuki Sano, Takahiro Miyakawa +4

We demonstrate the generation of high-quality tunable terahertz (THz) vortices in an eigenmode by employing soft-aperture difference frequency generation of a vortex output and a G…

physics.optics2019★ 5 cited

Generation of coupled orbital angular momentum modes from an optical vortex parametric laser source

Roukuya Mamuti, Shunsuke Goto, Katsuhiko Miyamoto +1

We report on the generation of flower (wheel) modes, which manifest coupled orbital angular momentum (OAM) modes, from a vortex pumped optical parametric oscillator simply by emplo…

physics.optics2019★ 14 cited

Optical vortex-induced forward mass transfer: Manifestation of helical trajectory of optical vortex

Ryosuke Nakamura, Haruki Kawaguchi, Muneaki Iwata +6

The orbital angular momentum of an optical vortex field is found to twist high viscosity donor material to form a micron-scale 'spin jet'. This unique phenomenon manifests the heli…