2000/10/02 by A. V. Turukhin, A. Turukhin, V. S. Sudarshanam +8
Physics and Astronomy · #FOS: Physical sciences #Laser-Matter Interactions and Applications #Photorefractive and Nonlinear Optics #Quantum Physics (quant-ph) #Quantum optics and atomic interactions #quant-ph
paper · pdf · doi:10.48550/arxiv.quant-ph/0010009
12 pages, 5 figures
openalex publication_date 2000/10/02 · arxiv created 2001/01/30 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
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 ms in a 3-mm thick crystal. Reduction of the group velocity is accomplished by using a sharp spectral feature in absorption and dispersion, produced by a Raman excited spin coherence in an optically dense Pr doped Y2SiO5 crystal.