Title
Two-photon absorption in strong fields
Abbreviated Journal Title
J. Lumines.
Keywords
two-photon absorption; coherence in two-photon absorption; 2-PHOTON ABSORPTION; Optics
Abstract
We present a theoretical formalism to describe simultaneous absorption of two single-mode photons by an atom. The appropriate interaction Hamiltonian, derived by a unitary transformation, is used to obtain a very general master equation for the photon density operator that includes the effects of Stark shifts. The special case in which the atomic levels are in resonance with the field, i.e., zero detuning, is considered. The master equation for the photon probability predicts a linear dependence of absorption on intensity, rather than the usual quadratic dependence, and results in a slower rate of absorption as a function of time. Coherence in the presence of two-photon absorption is also demonstrated. (C) 1999 Elsevier Science B.V. All rights reserved.
Journal Title
Journal of Luminescence
Volume
83-4
Publication Date
1-1-1999
Document Type
Article; Proceedings Paper
Language
English
First Page
167
Last Page
169
WOS Identifier
ISSN
0022-2313
Recommended Citation
"Two-photon absorption in strong fields" (1999). Faculty Bibliography 1990s. 2534.
https://stars.library.ucf.edu/facultybib1990/2534
Comments
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