Search Results - "Kuga, Takahiro"

Design of a high-Q air-slot cavity based on a width-modulated line-defect in a photonic crystal slab by Yamamoto, Takayuki, Notomi, Masaya, Taniyama, Hideaki, Kuramochi, Eiichi, Yoshikawa, Yutaka, Torii, Yoshio, Kuga, Takahiro

“…We have presented a novel design of a photonic crystal slab (PCS) nanocavity, in which the electric field of the cavity mode is strongly localized in free…”
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Carbon nanotube/polymer composite coated tapered fiber for four wave mixing based wavelength conversion by Xu, Bo, Omura, Mika, Takiguchi, Masato, Martinez, Amos, Ishigure, Takaaki, Yamashita, Shinji, Kuga, Takahiro

“…In this paper, we demonstrate a nonlinear optical device based on a fiber taper coated with a carbon nanotube (CNT)/polymer composite. Using this device, four…”
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New high-efficiency source of photon pairs for engineering quantum entanglement by Sanaka, K, Kawahara, K, Kuga, T

“…We constructed an efficient source of photon pairs using a waveguide-type nonlinear device and performed a two-photon interference experiment with an…”
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Holographic storage of multiple coherence gratings in a Bose-Einstein condensate by Yoshikawa, Yutaka, Nakayama, Kazuyuki, Torii, Yoshio, Kuga, Takahiro

“…We demonstrate superradiant conversion between a two-mode collective atomic state and a single-mode light field in an elongated cloud of Bose-condensed atoms…”
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Observation of superradiant Raman scattering in a Bose-Einstein condensate by Yoshikawa, Yutaka, Sugiura, Toshiaki, Torii, Yoshio, Kuga, Takahiro

“…We observed superradiant Raman scattering from a Bose-Einstein condensate irradiated by a single off-resonant light beam. Spontaneous mode selection of the…”
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3 dB Wideband squeezing in photon number fluctuations from a light emitting diode by SHINOZAKI, G, ABE, J, HIRANO, T, KUGA, T, YAMANISHI, M

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Precise intensity correlation measurement for atomic resonance fluorescence from optical molasses by Nakayama, Kazuyuki, Yoshikawa, Yutaka, Matsumoto, Hisatoshi, Torii, Yoshio, Kuga, Takahiro

“…We measured the intensity correlation of true thermal light scattered from cold atoms in an optical molasses. Using a single-mode fiber as a transverse mode…”
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Strong radiation force induced in two-dimensional photonic crystal slab cavities by Taniyama, Hideaki, Notomi, Masaya, Kuramochi, Eiichi, Yamamoto, Takayuki, Yoshikawa, Yutaka, Torii, Yoshio, Kuga, Takahiro

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Novel Optical Trap of Atoms with a Doughnut Beam by Kuga, Takahiro, Torii, Yoshio, Shiokawa, Noritsugu, Hirano, Takuya, Shimizu, Yukiko, Sasada, Hiroyuki

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Superradiant light scattering from thermal atomic vapors by YOSHIKAWA, Yutaka, TORII, Yoshio, KUGA, Takahiro

“…Superradiant light scattering from noncondensed, thermal atomic vapors was experimentally studied. We found that superradiant gain is independent of quantum…”
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Phase-Coherent Amplification of Matter Waves by Kozuma, Mikio, Suzuki, Yoichi, Torii, Yoshio, Sugiura, Toshiaki, Kuga, Takahiro, Hagley, E. W., Deng, L.

“…Phase-coherent matter-wave amplification was demonstrated using Bose-Einstein-condensed rubidium-87 atoms. A small seed matter wave was created with coherent…”
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Mach-Zehnder Bragg interferometer for a Bose-Einstein condensate by Torii, Yoshio, Suzuki, Yoichi, Kozuma, Mikio, Sugiura, Toshiaki, Kuga, Takahiro, Deng, Lu, Hagley, E. W.

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Investigating statistical properties of light from high efficiency light emitting diodes by Hirano, Takuya, Shinozaki, Gen, Abe, Junichi, Kuga, Takahiro

“…We find that photons from a light emitting diode injected with Poissonian electrons have superPoissonian statistics when the differential efficiency is larger…”
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Control of light pulse propagation with only a few cold atoms in a high-finesse microcavity by Shimizu, Yukiko, Shiokawa, Noritsugu, Yamamoto, Noriaki, Kozuma, Mikio, Kuga, Takahiro, Deng, L, Hagley, E W

“…Propagation of a light pulse through a high-Q optical microcavity containing a few cold atoms (N<10) in its cavity mode is investigated experimentally. With…”
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Stabilization of a CW Mode-Locked YAG Laser Using Feedback with an Acousto-Optic Modulator by Matsumoto, Takahiro, Baba, Motoyoshi, Kuga, Takahiro, Matsuoka, Masahiro

“…We have achieved reduction of the power fluctuation of the second harmonic of a cw mode-locked YAG laser from 5% to less than 0.1% using a feedback loop with…”
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Observation and analysis of visible overtone band transitions of NH3 by KUGA, T, SHIMIZU, T, UEDA, Y

“…A sensitive spectrometer with a ring-dye laser is constructed to observe very weak visible transitions of molecules. The sensitivity is estimated to be 3 x 10…”
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Construction of a highly sensitive spectrometer in the visible region by KUGA, T, SHIMIZU, T, UEDA, Y

“…A sensitive spectrometer was constructed in order to observe very weak visible absorption lines of molecules using a ring dye laser, a multiple-pass absorption…”
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Continuous-variable qubit on an optical transverse mode by Takeuchi, Makoto, Kuga, Takahiro

“…Continuous-variable (CV) qubits can be created on an optical longitudinal mode in which quantum information is encoded by the superposition of even and odd…”
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Highly sensitive laser spectroscopic method for measurement of collisional relaxation parameters of molecules by KAJITA, M, KUGA, T, KUZE, H, MATSUSHIMA, F, SHIMIZU, F

“…An intracavity time-resolved spectroscopic method has been developed for studies of collisional relaxation mechanisms associated with very weak infrared…”
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Wideband squeezing in photon number fluctuations from a high-speed light-emitting diode by Abe, J, Kuga, T, Hirano, T, Kobayashi, M, Yamanishi, M

“…Wideband, highly noise-suppressed squeezing was observed by using a high-speed, high-quantum-efficiency light-emitting diode. The squeezing bandwidth extended…”
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