論文リスト

@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}

}

@article{asano2015distillation,

title = {Distillation of photon entanglement using a plasmonic metamaterial},

author = {Motoki Asano and Muriel Bechu and Mark Tame and {Ş}ahin K Özdemir and Rikizo Ikuta and Durdu Ö Güney and Takashi Yamamoto and Lan Yang and Martin Wegener and Nobuyuki Imoto},

doi = {10.1038/srep18313},

year  = {2015},

date = {2015-12-01},

journal = {Scientific reports},

volume = {5},

pages = {18313},

publisher = {Nature Publishing Group},

keywords = {entanglement, metamaterial},

pubstate = {published},

tppubtype = {article}

}

@article{Asano:15,

title = {Analytical investigation of optical vortices emitted from a collectively polarized dipole array},

author = {Motoki Asano and Tohru Takahashi},

url = {http://www.opticsexpress.org/abstract.cfm?URI=oe-23-21-27998},

doi = {10.1364/OE.23.027998},

year  = {2015},

date = {2015-10-01},

journal = {Opt. Express},

volume = {23},

number = {21},

pages = {27998--28011},

publisher = {OSA},

abstract = {Many approaches for producing optical vortices have been developed both for fundamental interests of science and for engineering applications. In particular, the approach with direct excitation of several emitters has a potential to control the topological charges with a control of the source conditions without any modifications of structures of the system. In this paper, we investigate the propagation properties of the optical vortices emitted from a collectively polarized electric dipole array as a simple model of the several emitters. Using an analytical approach based on the Jacobi-Anger expansion, we derive a relationship between the topological charge of the optical vortices and the source conditions of the emitter, and clarify and report our new finding; there exists an intrinsic split of the singular points in the electric field due to the spin-orbit interaction of the dipole fields.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}