113 citations · 266 across the 15 of their papers we have counts for
15 papers
Non-Centrosymmetric -Phase GaS Nanobelts for On-Chip Nonlinear Photonic Applications
Yukihiro Endo, Masato Takiguchi, Yoshiaki Sekine +2
Second-order nonlinear optical processes in van der Waals (vdW) semiconductors offer a compelling route toward compact, integrable photon-conversion platforms. Among III-VI vdW sem…
Inverse-Designed Non-Hermitian Hollow Nanowire Cavity for Generating Optical Orbital Angular Momentum
Xuen Zhen Lim, Masato Takiguchi, Ryuji Kuruma +2
We designed a gallium nitride hexagonal hollow nanowire whispering gallery mode cavity that generates an |m|=6 topological light with orbital angular momentum (OAM). OAM is generat…
On-chip room-temperature CW lasing from a III-V nanowire integrated with a Si photonic crystal platform
Masato Takiguchi, Takuro Fujii, Hisashi Sumikura +3
We report the demonstration of continuous-wave (CW) lasing at room temperature from a III-V semiconductor nanowire integrated into a Si photonic crystal (PhC) cavity. Conventional…
Chiral Diffraction from Aperiodic Monotile Lattice
Yuto Moritake, Masato Takiguchi, Takuma Aihara +1
Aperiodic systems such as quasiperiodic systems exhibit unique properties different from periodic structures. In 2023, Smith et al. discovered a new aperiodic structure: a single-s…
Vector beam generation from standing hollow GaN nanowire lasers on sapphire substrate
Masato Takiguchi, Sylvain Sergent, Benjamin Damilano +9
We fabricated GaN based hollow nanowires standing upright on a sapphire substrate by the sublimation method and found that they exhibit laser oscillation at room temperature. These…
Emulating the local Kuramoto model with an injection-locked photonic crystal laser array
Naotomo Takemura, Kenta Takata, Masato Takiguchi +1
The Kuramoto model is a mathematical model for describing the collective synchronization phenomena of coupled oscillators. We theoretically demonstrate that an array of coupled pho…
Designs toward synchronization of optical limit cycles with coupled silicon photonic crystal microcavities
Naotomo Takemura, Masato Takiguchi, Masaya Notomi
A driven high-Q Si microcavity is known to exhibit limit cycle oscillation originating from carrier-induced and thermo-optic nonlinearities. We propose a novel nanophotonic device…
Photon correlation measurements of stochastic limit cycles emerging from high- nonlinear silicon photonic crystal microcavities
N. Takemura, M. Takiguchi, H. Sumikura +3
We performed measurements of photon correlation [] in driven nonlinear high- silicon (Si) photonic crystal (PhC) microcavities. The measured exhibits a…
Probing the Ginzburg-Landau Potential for Lasers Using Higher-order Photon Correlations
Naotomo Takemura, Masato Takiguchi, Masaya Notomi
Lasing transition is known to be analogous to the second-order phase transition. Furthermore, for some cases, it is possible to define the Ginzburg-Landau (GL) potential, and the G…
Low- and high- lasers in Class-A limit: photon statistics, linewidth, and the laser-phase transition analogy
Naotomo Takemura, Masato Takiguchi, Masaya Notomi
Nanocavity lasers are commonly characterized by the spontaneous coupling coefficient that represents the fraction of photons emitted into the lasing mode. While is conventi…
All-optical dynamic modulation of spontaneous emission rate in hybrid optomechanical cavity quantum electrodynamics systems
Feng Tian, Hisashi Sumikura, Eiichi Kuramochi +4
Recent nanofabrication technologies have miniaturized optical and mechanical resonators, and have led to a variety of novel optomechanical systems in which optical and mechanical m…
Continuous-wave operation and 10-Gb/s direct modulation of InAsP/InP sub-wavelength nanowire laser on silicon photonic crystal
Masato Takiguchi, Atsushi Yokoo, Kengo Nozaki +6
We demonstrated sub-wavelength (~111 nm diameter) single nanowire (NW) continuous wave (CW) lasers on silicon photonic crystal in the telecom-band with direct modulation at 10 Gb/s…
Spontaneous emission inhibition of telecom-band quantum disks inside single nanowire on different substrates
M. D. Birowosuto, G. Zhang, A. Yokoo +2
We investigate the inhibited spontaneous emission of telecom-band InAs quantum disks (Qdisks) in InP nanowires (NWs). We have evaluated how the inhibition is affected by different…
Movable high Q nanoresonators realized by semiconductor nanowires on a Si photonic crystal platform
M. D. Birowosuto, A. Yokoo, G. Zhang +5
Subwavelength semiconductor nanowires have recently attracted interest for photonic applications because they possess various unique optical properties and offer great potential fo…
Design for ultrahigh-Q position-controlled nanocavities of single semiconductor nanowires in 2D photonic crystals
M. D. Birowosuto, A. Yokoo, H. Taniyama +3
Using Finite-Difference Time-Domain (FDTD) simulation, we show that ultrahigh- Q nanocavities can be obtained through the manipulation of a single semiconductor nanowire (NW) insid…