115 citations · 359 across the 11 of their papers we have counts for
11 papers
Quantum dot single photon source on SiN integrated with coupled crossover waveguides
Akinari Fujita, Hironobu Yoshimi, Natthajuks Pholsen +5
Hybrid integration of InAs/GaAs quantum dot (QD) single-photon sources (SPSs) is a promising approach for introducing quantum light into SiN photonic integrated circuits. However,…
Topologically-protected single-photon sources with topological slow light photonic crystal waveguides
Kazuhiro Kuruma, Hironobu Yoshimi, Yasutomo Ota +4
Slow light waveguides are advantageous for implementing high-performance single-photon sources required for scalable operation of integrated quantum photonic circuits (IQPCs), thou…
Unidirectional output from a quantum-dot single-photon source hybrid integrated on silicon
Ryota Katsumi, Yasutomo Ota, Takeyoshi Tajiri +4
We report a quantum-dot single-photon source (QD SPS) hybrid integrated on a silicon waveguide embedding a photonic crystal mirror, which reflects photons and enables efficient uni…
Strong coupling between a single quantum dot and an L4/3 photonic crystal nanocavity
Kazuhiro Kuruma, Yasutomo Ota, Masahiro Kakuda +2
We demonstrate strong coupling between a single quantum dot and a GaAs-based L4/3-type photonic crystal nanocavity. The L4/3 cavity supports a high theoretical Q factor (~8{\times}…
Surface-passivated high-Q GaAs photonic crystal nanocavity with quantum dots
Kazuhiro Kuruma, Yasutomo Ota, Masahiro Kakuda +2
Photonic crystal (PhC) nanocavities with high quality (Q) factors have attracted much attention because of their strong spatial and temporal light confinement capability. The resul…
In-situ wavelength tuning of quantum-dot single-photon sources integrated on a CMOS silicon chip
Ryota Katsumi, Yasutomo Ota, Alto Osada +6
Silicon quantum photonics provides a promising pathway to realize large-scale quantum photonic integrated circuits (QPICs) by exploiting the power of complementary-metal-oxide-semi…
Quantum-dot single-photon source on a CMOS silicon photonic chip integrated using transfer printing
Ryota Katsumi, Yasutomo Ota, Alto Osada +6
Silicon photonics is a powerful platform for implementing large-scale photonic integrated circuits (PICs), because of its compatibility with mature complementary-metal-oxide-semico…
Strongly coupled single quantum dot-cavity system integrated on a CMOS-processed silicon photonic chip
Alto Osada, Yasutomo Ota, Ryota Katsumi +3
Quantum photonic integrated circuit (QPIC) is a promising tool for constructing integrated devices for quantum technology applications. In the optical regime, silicon photonics emp…
Optical coupling between atomically-thin black phosphorus and a two dimensional photonic crystal nanocavity
Yasutomo Ota, Rai Moriya, Naoto Yabuki +5
Atomically-thin black phosphorus (BP) is an emerging two dimensional (2D) material exhibiting bright photoluminescence in the near infrared. Coupling its radiation to photonic nano…
Time-resolved vacuum Rabi oscillations in a quantum dot-nanocavity system
K. Kuruma, Y. Ota, M. Kakuda +2
We report time-domain observation of vacuum Rabi oscillations in a single quantum dot strongly coupled to a nanocavity under incoherent optical carrier injection. We realize a phot…
Transfer-printed single photon sources coupled to wire waveguides
Ryota Katsumi, Yasutomo Ota, Masahiro Kakuda +2
Photonic integrated circuits (PICs) are attractive platforms to perform large-scale quantum information processing. While highly-functional PICs (e.g. silicon based photonic-circui…