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Proceedings Paper

Hyperfine frequency measurement and interference between different dark states in rubidium 85
Author(s): G. Alzetta; L. Botti; Stefka Cartaleva; A. Rossi; Jihua Xu
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Paper Abstract

Dark States for Rubidium 85 have been obtained in glass cells containing saturated vapors of natural Rubidium at room temperature. The two radiation, which are required to induce the dark states, have been generated by modulating the light emission of a laser diode, tuned at the S-P optical transition. A measurement of the energy difference between the hyperfine states F equals 2 and F equals 3 of 5S1/2 is performed by an optical way. By using simultaneously two laser diodes, one tuned at the D1 transition and the other at the D2, we have generated two different Dark States. Interference between the two dark states prepared on the same place has been studied by changing the phase of the D1 and D2 excitations. A new way to modulate laser beam intensity is shown.

Paper Details

Date Published: 9 April 2001
PDF: 5 pages
Proc. SPIE 4397, 11th International School on Quantum Electronics: Laser Physics and Applications, (9 April 2001); doi: 10.1117/12.425122
Show Author Affiliations
G. Alzetta, Univ. di Pisa (Italy)
L. Botti, Univ. di Pisa (Italy)
Stefka Cartaleva, Institute of Electronics (Bulgaria)
A. Rossi, Univ. di Pisa (Italy)
Jihua Xu, Scuola Normale Superiore (Italy)

Published in SPIE Proceedings Vol. 4397:
11th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Stefka Cartaleva, Editor(s)

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