نتایج جستجو برای: slow light

تعداد نتایج: 499506  

2008
SHAYAN MOOKHERJEA JUNG S. PARK SHUN-HUI YANG PRABHAKAR R. BANDARU

Slowing down light on a chip can lead to the development of optical buffers1, filters2,3 and memory elements4 useful for optical interconnects and for resonantly enhanced chip-based nonlinear optics. Several approaches to slow light rely on the phenomenon of light interference in a sequence of coupled resonators; however, light interference is also responsible, in disordered structures, for the...

2008
Forrest Grant Sedgwick Constance J. Chang-Hasnain Ming C. Wu Peter Y. Yu Connie J. Chang-Hasnain

2015
Panagiotis Kanakis

In this thesis, the delay performance of slow light optical pulses inside PCWs is considered in the linear and nonlinear propagation regime from both a theoretical and an application point of view. It is numerically shown that for rates of 40Gb/s and 100Gb/s, nonlinear solitary pulses experience less broadening than the linear case and can therefore be used to obtain larger delays. The storage ...

2004
J Kim S L Chuang C J Chang-Hasnain

A variable semiconductor optical buffer based on the electromagnetically induced transparency in a quantum dot waveguide is theoretically investigated with feasible parameters for applications to a 40 Gbps optical network. We show the refractive index and absorption spectra of the quantum dot waveguide at various pump levels, which exhibit an optimal pump power for maximum slow-down factor, in ...

2014
Meng-Jung Lee Julius Ruseckas Chin-Yuan Lee Viačeslav Kudriašov Kao-Fang Chang Hung-Wen Cho Gediminas Juzeliānas Ite A. Yu

Slow light based on the effect of electromagnetically induced transparency is of great interest due to its applications in low-light-level nonlinear optics and quantum information manipulation. The previous experiments all dealt with the single-component slow light. Here, we report the experimental demonstration of two-component or spinor slow light using a double-tripod atom-light coupling sch...

2009
J. Dressel A. N. Jordan

We explore the nature of the classical propagation of light through media with strong frequency-dependent dispersion in the presence of a gravitational field. In the weak field limit, gravity causes a redshift of the optical frequency, which the slow-light medium converts into a spatially varying index of refraction. This results in the bending of a light ray in the medium. We further propose e...

Journal: :Physical review letters 2004
G Juzeliūnas P Ohberg

We investigate the effect of slow light propagating in a degenerate atomic Fermi gas. In particular we use slow light with an orbital angular momentum. We present a microscopic theory for the interplay between light and matter and show how the slow light can provide an effective magnetic field acting on the electrically neutral fermions, a direct analogy of the free electron gas in an uniform m...

2005
R. N. Shakhmuratov A. Rebane P. Mégret J. Odeurs

R. N. Shakhmuratov, A. Rebane, P. Mégret, and J. Odeurs Instituut voor Kernen Stralingsfysica, Katholieke Universiteit Leuven, Celestijnenlaan 200 D, B-3001 Leuven, Belgium Optique Nonlinéaire Théorique, Université Libre de Bruxelles, Campus Plaine CP 231, B-1050 Bruxelles, Belgium Kazan Physical Technical Institute, Russian Academy of Sciences, 10/7 Sibirsky trakt, Kazan 420029 Russia Physics ...

2009
Andrey A Sukhorukov Sangwoo Ha Anton S Desyatnikov Andrei V Lavrinenko Yuri S Kivshar

We reveal that the reduction of the group velocity of light in periodic waveguides is generically associated with the presence of circulating energy flows or optical vortices. We show that the energy flows are gradually frozen for slow-light at the Brillouin zone edge, whereas vortices persist for slow-light states having non-vanishing phase velocity inside the Brillouin zone. We also demonstra...

2008
Nikitas Papasimakis Vassili A. Fedotov Sergey L. Prosvirnin Nikolay I. Zheludev

We show for the first time that a classical analogue of EIT can be realized in “zero thickness” planar metamaterials (meta-surfaces) resulting in substantial delay of propagating electromagnetic pulses. @2008 Optical Society of America OCIS codes: (160.3918) Metamaterials; (260.2030) Dispersion Here we demonstrate that a classical analogue of EIT can be implemented by appropriately patterning o...

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