نتایج جستجو برای: slow light

تعداد نتایج: 499506  

Journal: :Optics express 2005
Michael D Stenner Mark A Neifeld Zhaoming Zhu Andrew M C Dawes Daniel J Gauthier

We describe a methodology to maximize slow-light pulse delay subject to a constraint on the allowable pulse distortion. We show that optimizing over a larger number of physical variables can increase the distortion-constrained delay. We demonstrate these concepts by comparing the optimum slow-light pulse delay achievable using a single Lorentzian gain line with that achievable using a pair of c...

2004
P. C. Ku

We analyzed a new variable all-optical buffer using semiconductor quantum dots (QD). We show that an Ids-InGaAs-GaAs QD waveguide with 20meV inhomogeneous linewidth can achieve substantial buffering with a novel unbalanced multi-wavelength pumping scheme. Introduction: The advancement of 111-V semiconductor quantum dots (QD) has made many interesting applications, such as ultra-low threshold di...

2007
Leon Karpa Martin Weitz

Electromagnetically induced transparency allows for light transmission through dense atomic media by means of quantum interference1. Media exhibiting electromagnetically induced transparency have very interesting properties, such as extremely slow group velocities2-4. Associated with the slow light propagation are quasiparticles, the so-called dark polaritons, which are mixtures of a photonic a...

Journal: :Optics express 2010
Rui Zhang Yunhui Zhu Jing Wang Daniel J Gauthier

ct: We introduce a new concept for stimulated-Brillouin-scattering-based slow light in optical fibers that is applicable for broadly-tunable frequency-swept sources. It allows slow light to be achieved, in principle, over the entire transparency window of the optical fiber. We demonstrate a slow light delay of 10 ns at 1.55 μm using a 10-m-long photonic crystal fiber with a source sweep rate of...

2014
Hiroki Takesue Nobuyuki Matsuda Eiichi Kuramochi Masaya Notomi

We report the first entanglement generation experiment using an on-chip slow light device. With highly efficient spontaneous four-wave mixing enhanced by the slow light effect in a coupled resonator optical waveguide based on a silicon photonic crystal, we generated 1.5-μm-band high-dimensional time-bin entangled photon pairs. We undertook two-photon interference experiments and observed the co...

2009
Toshihiko Baba Jun Adachi Norihiro Ishikura Yohei Hamachi Hirokazu Sasaki Takashi Kawasaki Daisuke Mori

Slow light with a markedly low group velocity is a promising solution for optical buffering and advanced time-domain optical signal processing. It is also anticipated to enhance linear and nonlinear effects and so miniaturize functional photonic devices because slow light compresses optical energy in space. Photonic crystal waveguide devices generate on-chip slow light at room temperature with ...

Journal: :The Journal of Cell Biology 1982
GF Gauthier S Lowey PA Benfield AW Hobbs

Isozymes of myosin have been localized with respect to individual fibers in differentiating skeletal muscles of the rat and chicken using immunocytochemistry. The myosin light chain pattern has been analyzed in the same muscles by two-dimensional PAGE. In the muscles of both species, the response to antibodies against fast and slow adult myosin is consistent with the speed of contraction of the...

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