Observation of ultraslow and stored light pulses in a solid.
We report ultraslow group velocities of light in an optically dense crystal of Pr doped Y2SiO5. Light speeds as slow as 45 m/s were observed, corresponding to a group delay of 66 micros. Deceleration and "stopping" or trapping of the light pulse was also observed. These reductions of the group velocity are accomplished by using a sharp spectral feature in absorption and dispersion that is produced by resonance Raman excitation of a ground-state spin coherence.
Turukhin
A V
AV
Research Laboratory of Electronics, Massachusetts Institute of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, USA. alexey.turukhin@us.jdsuniphase.com
Sudarshanam
V S
VS
Shahriar
M S
MS
Musser
J A
JA
Ham
B S
BS
Hemmer
P R
PR