2-PHOTON EXCITATION AND QUANTUM INTERFERENCE FOR A LADDER ATOM IN A CAVITY WITH INJECTED SQUEEZED-LIGHT

Authors
ZHOU P SWAIN S
Citation
P. Zhou et S. Swain, 2-PHOTON EXCITATION AND QUANTUM INTERFERENCE FOR A LADDER ATOM IN A CAVITY WITH INJECTED SQUEEZED-LIGHT, Optics communications, 134(1-6), 1997, pp. 127-133
Citations number
22
Categorie Soggetti
Optics
Journal title
Optics communications → ACNP
ISSN journal
00304018
Volume
134
Issue
1-6
Year of publication
1997
Pages
127 - 133
Database
ISI
SICI code
0030-4018(1997)134:1-6<127:2EAQIF>2.0.ZU;2-F
Abstract
The two-photon excitation of a ladder atom by an injected squeezed vac uum is studied in the bad cavity limit. Our analytic theory shows the two-photon excitation rate to be composed of terms linearly and quadra tically dependent on the squeezed photon number N, in agreement in thi s respect with the recent experiment of Georgiades et al. [Phys. Rev. Lett. 75 (1995) 3426]. We provide a simple physical explanation of the se features, and predict a new effect due to quantum interference-a pr onounced, sharp peak in the fluorescence spectrum under appropriate co nditions.