First observation of ultraslow group velocity of light in a solid

Alexey V. Turukhin; Venkatapura S. Sudarshanam; J. A. Musser; M. Selim Shahriar; Philip L. Hemmer

doi:10.1117/12.454041

23 January 2002 First observation of ultraslow group velocity of light in a solid

Alexey V. Turukhin, Venkatapura S. Sudarshanam, J. A. Musser, M. Selim Shahriar, Philip L. Hemmer

Proceedings Volume 4459, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage; (2002) https://doi.org/10.1117/12.454041
Event: International Symposium on Optical Science and Technology, 2001, San Diego, CA, United States

Abstract

We report ultraslow group velocities of light in a solid. Light speeds as slow as 45 m/s were observed, corresponding to a group delay of 66 microsecond(s) in a 3-mm thick, optically dense crystal of Pr doped Y₂SiO₅. Reduction of the group velocity is accomplished by using a sharp spectral feature in absorption and dispersion that is produced by resonance Raman excitation of a ground-state spin coherence. Potential applications of slow and stopped light for the highly efficient storage and recall of optical data are discussed.

Citation Download Citation

Alexey V. Turukhin, Venkatapura S. Sudarshanam, J. A. Musser, M. Selim Shahriar, and Philip L. Hemmer "First observation of ultraslow group velocity of light in a solid", Proc. SPIE 4459, Photorefractive Fiber and Crystal Devices: Materials, Optical Properties, and Applications VII, and Optical Data Storage, (23 January 2002); https://doi.org/10.1117/12.454041

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