論文リスト

@article{Fujimoto:22,

title = {Entanglement distribution using a biphoton frequency comb compatible with DWDM technology},

author = {Rintaro Fujimoto and Tomohiro Yamazaki and Toshiki Kobayashi and Shigehito Miki and Fumihiro China and Hirotaka Terai and Rikizo Ikuta and Takashi Yamamoto},

url = {http://opg.optica.org/oe/abstract.cfm?URI=oe-30-20-36711},

doi = {10.1364/OE.469344},

year  = {2022},

date = {2022-09-01},

urldate = {2022-09-01},

journal = {Optics Express},

volume = {30},

number = {20},

pages = {36711--36716},

publisher = {Optica Publishing Group},

abstract = {We demonstrate a distribution of frequency-multiplexed polarization-entangled photon pairs over 16 frequency channels using demultiplexers for the signal and idler photons with a frequency spacing of 25 GHz, which is compatible with dense wavelength division multiplexing (DWDM) technology. Unlike conventional frequency-multiplexed photon-pair distribution by a broadband spontaneous parametric down-conversion (SPDC) process, we use photon pairs produced as a biphoton frequency comb by SPDC inside a cavity where one of the paired photons is confined. Owing to the free spectral range of 12.5 GHz and the finesse of over 10 of the cavity, the generated photons having a narrow linewidth in one channel are separated well from those in the other channels, which minimizes channel cross-talk in advance. The observed fidelities of the photon pairs range from 81 % to 96 % in the 16 channels. The results show the usefulness of the polarization-entangled biphoton frequency comb for frequency-multiplexed entanglement distribution via a DWDM system.},

keywords = {entanglement, optical cavity, quantum frequency comb, quantum internet},

pubstate = {published},

tppubtype = {article}

}

@article{Yamazaki2022,

title = {Massive-mode polarization entangled biphoton frequency comb},

author = {Tomohiro Yamazaki and Rikizo Ikuta and Toshiki Kobayashi and Shigehito Miki and Fumihiro China and Hirotaka Terai and Nobuyuki Imoto and Takashi Yamamoto},

url = {https://www.nature.com/articles/s41598-022-12691-7},

doi = {https://doi.org/10.1038/s41598-022-12691-7},

year  = {2022},

date = {2022-05-28},

urldate = {2022-05-28},

journal = {Scientific Reports},

volume = {12},

number = {8964},

pages = {1 -- 8},

keywords = {entanglement, optical cavity, quantum frequency comb},

pubstate = {published},

tppubtype = {article}

}

@article{Ikuta2021,

title = {Cavity-enhanced broadband photonic Rabi oscillation},

author = {Rikizo Ikuta and Toshiki Kobayashi and Tomohiro Yamazaki and Nobuyuki Imoto and Takashi Yamamoto},

url = {https://journals.aps.org/pra/abstract/10.1103/PhysRevA.103.033709},

doi = {https://doi.org/10.1103/PhysRevA.103.033709},

year  = {2021},

date = {2021-03-18},

journal = {Physical Review A},

volume = {103},

pages = {033709},

abstract = {A coherent coupling among different energy photons provided by nonlinear optical interaction is regarded as a photonic version of the Rabi oscillation. Cavity enhancement of the nonlinearity reduces an energy requirement significantly and pushes the scalability of the frequency-encoded photonic circuit based on the photonic Rabi oscillation. However, the confinement of the photons in the cavity severely limits the number of interactable frequency modes. Here we demonstrate a wide-bandwidth and efficient photonic Rabi oscillation achieving full-cycle oscillation based on a cavity-enhanced nonlinear optical interaction with a monolithic integration. We also show its versatile manipulation beyond the frequency degree of freedom such as an all-optical control for polarizing photons with geometric phase. Our results will open up full control accessible to synthetic dimensional photonic systems over wide frequency modes as well as a large-scale photonic quantum information processing.},

keywords = {optical cavity, quantum frequency conversion},

pubstate = {published},

tppubtype = {article}

}

@article{Ikuta2019,

title = {Frequency-Multiplexed Photon Pairs Over 1000 Modes from a Quadratic Nonlinear Optical Waveguide Resonator with a Singly Resonant Configuration},

author = {Rikizo Ikuta and Ryoya Tani and Masahiro Ishizaki and Shigehito Miki and Masahiro Yabuno and Hirotaka Terai and Nobuyuki Imoto and Takashi Yamamoto },

url = {https://link.aps.org/doi/10.1103/PhysRevLett.123.193603},

doi = {10.1103/PhysRevLett.123.193603},

year  = {2019},

date = {2019-11-08},

urldate = {2019-11-08},

journal = {Phys. Rev. Lett.},

volume = {123},

pages = {193603},

organization = {arXiv},

abstract = {We demonstrate a frequency multiplexed photon pair generation based on a quadratic nonlinear optical waveguide inside a cavity which confines only signal photons without confining idler photons and the pump light. We monolithically constructed the photon pair generator by a periodically poled lithium niobate (PPLN) waveguide with a high reflective coating for the signal photons around 1600 nm and with antireflective coatings for the idler photons around 1520 nm and the pump light at 780 nm at the end faces of the PPLN waveguide. We observed a comblike photon pair generation with a mode spacing of the free spectral range of the cavity. Unlike the conventional multiple resonant photon pair generation experiments, the photon pair generation was incessant within a range of 80 nm without missing teeth due to a mismatch of the energy conservation and the cavity resonance condition of the photons, resulting in over 1000-mode frequency multiplexed photon pairs in this range.},

keywords = {optical cavity, quantum frequency comb, quantum internet},

pubstate = {published},

tppubtype = {article}

}

@article{Ikuta2018b,

title = {Frequency comb generation in a quadratic nonlinear waveguide resonator},

author = {Rikizo Ikuta and Motoki Asano and Ryoya Tani and Takashi Yamamoto and Nobuyuki Imoto},

url = {https://www.osapublishing.org/oe/abstract.cfm?uri=oe-26-12-15551},

doi = {10.1364/OE.26.015551},

year  = {2018},

date = {2018-06-06},

journal = {Optics Express},

volume = {26},

number = {12},

pages = {15551--15558},

keywords = {optical cavity},

pubstate = {published},

tppubtype = {article}

}

@article{Asano2018,

title = {An opto-electro-mechanical system based on evanescently-coupled optical microbottle and electromechanical resonator},

author = {Motoki Asano and Ryuichi Ohta and Takashi Yamamoto and Hajime Okamoto and Hiroshi Yamaguchi},

url = {https://doi.org/10.1063/1.5022115},

doi = {10.1063/1.5022115},

year  = {2018},

date = {2018-05-15},

journal = {Appl. Phys. Lett. },

volume = {112},

pages = {201103},

keywords = {optical cavity, optomechanics},

pubstate = {published},

tppubtype = {article}

}

@article{Asano:16b,

title = {Visible light emission from a silica microbottle resonator by second- and third-harmonic generation},

author = {Motoki Asano and Shoichi Komori and Rikizo Ikuta and Nobuyuki Imoto and {Ş}ahin K Özdemir and Takashi Yamamoto},

url = {http://ol.osa.org/abstract.cfm?URI=ol-41-24-5793},

doi = {10.1364/OL.41.005793},

year  = {2016},

date = {2016-12-01},

journal = {Opt. Lett.},

volume = {41},

number = {24},

pages = {5793--5796},

publisher = {OSA},

abstract = {We report the first observation of nonlinear harmonic generation and sum frequency generation (SFG) coupled with stimulated Raman scattering (SRS) via the second-order (χ(2)) and the third-order (χ(3)) nonlinearities in a silica microbottle resonator. The visible light emission due to third-harmonic generation (THG) was observed in both the output of a tapered fiber and the optical microscope images, which can be used to identify the axial mode profiles. SFG enabled by three- and four-wave mixing processes between the pump light and the light generated via SRS was also observed. Second-harmonic generation (SHG) and the SFG are enabled by χ(2) induced in silica by surface effects and multipole excitations.},

keywords = {optical cavity},

pubstate = {published},

tppubtype = {article}

}

@article{asano2016anomalous,

title = {Anomalous time delays and quantum weak measurements in optical microresonators},

author = {Motoki Asano and Konstantin Y Bliokh and Yury P Bliokh and Abraham G Kofman and Rikizo Ikuta and Takashi Yamamoto and Yuri S Kivshar and Lan Yang and Nobuyuki Imoto and {Ş}ahin K Özdemir and Franco Nori},

doi = {10.1038/ncomms13488},

year  = {2016},

date = {2016-11-01},

journal = {Nature communications},

volume = {7},

pages = {13488},

publisher = {Nature Publishing Group},

keywords = {optical cavity},

pubstate = {published},

tppubtype = {article}

}

@article{doi:10.1002/lpor.201500243,

title = {Observation of optomechanical coupling in a microbottle resonator},

author = {Motoki Asano and Yuki Takeuchi and Weijian Chen and {Ş}ahin K Özdemir and Rikizo Ikuta and Nobuyuki Imoto and Lan Yang and Takashi Yamamoto},

url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/lpor.201500243},

doi = {10.1002/lpor.201500243},

year  = {2016},

date = {2016-07-01},

journal = {Laser & Photonics Reviews},

volume = {10},

number = {4},

pages = {603-611},

abstract = {Abstract In this work, we report optomechanical coupling, resolved sidebands and phonon lasing in a solid‐core microbottle resonator fabricated on a single mode optical fiber. Mechanical modes with quality factors (Qm) as high as 1.57 × 104 and 1.45 × 104 were observed, respectively, at the mechanical frequencies and . The maximum  Hz is close to the theoretical lower bound of 6 × 1012 Hz needed to overcome thermal decoherence for resolved‐sideband cooling of mechanical motion at room temperature, suggesting microbottle resonators as a possible platform for this endeavor. In addition to optomechanical effects, scatter‐induced mode splitting and ringing phenomena, which are typical for high‐quality optical resonances, were also observed in a microbottle resonator.},

keywords = {optical cavity, optomechanics},

pubstate = {published},

tppubtype = {article}

}

@article{Asano:16,

title = {Stimulated Brillouin scattering and Brillouin-coupled four-wave-mixing in a silica microbottle resonator},

author = {Motoki Asano and Yuki Takeuchi and {Ş}ahin K Özdemir and Rikizo Ikuta and Lan Yang and Nobuyuki Imoto and Takashi Yamamoto},

url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-24-11-12082},

doi = {10.1364/OE.24.012082},

year  = {2016},

date = {2016-05-01},

journal = {Opt. Express},

volume = {24},

number = {11},

pages = {12082--12092},

publisher = {OSA},

abstract = {We report the first observation of stimulated Brillouin scattering (SBS) with Brillouin lasing, and Brillouin-coupled four-wave-mixing (FWM) in an ultra-high-Q silica microbottle resonator. The Brillouin lasing was observed at the frequency of ΩB $=$ 2π × 10.4 GHz with a threshold power of 0.45 mW. Coupling between Brillouin and FWM was observed in both backward and forward scattering directions with separations of 2ΩB. At a pump power of 10 mW, FWM spacing reached to 7th and 9th order anti-Stokes and Stokes, respectively.},

keywords = {optical cavity, optomechanics},

pubstate = {published},

tppubtype = {article}

}

@article{doi:10.1063/1.4948922,

title = {Controlling slow and fast light and dynamic pulse-splitting with tunable optical gain in a whispering-gallery-mode microcavity},

author = {Motoki Asano and {Ş}ahin K Özdemir and Weijian Chen and Rikizo Ikuta and Lan Yang and Nobuyuki Imoto and Takashi Yamamoto},

url = {https://doi.org/10.1063/1.4948922},

doi = {10.1063/1.4948922},

year  = {2016},

date = {2016-01-01},

journal = {Applied Physics Letters},

volume = {108},

number = {18},

pages = {181105},

keywords = {optical cavity},

pubstate = {published},

tppubtype = {article}

}