Abstract

An atom, bounded to the surface of a crystal; absorbs photons from a strong incident laser field and subsequently emits phonons into the solid. In this paper we study the influence of the laser linewidth on this photon–phonon conversion process. The appearance of coherences obscures the interpretation of the equation of motion in terms of transition rates and prohibits the derivation of a master equation in the transient region. The absorbed energy from the driving field, which is assumed to be resonant with a set of two levels only, results from the work done by the external field on the transition dipole. In the steady state, the energy absorption from the radiation field equals the energy emission in the phonon field. It is shown that in this long-time limit the coherences can be expressed in terms of the populations, and hence the system is again described by a masterlike equation. Specific aspects of the finite laser bandwidth are pointed out.

© 1987 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Theory of photodesorption by infrared-laser–adsorbate coupling

H. J. Kreuzer, Z. W. Gortel, and P. Piercy
J. Opt. Soc. Am. B 4(2) 248-254 (1987)

Theory of laser-stimulated desorption spectroscopy

S. H. Lin, A. Boeglin, and B. Fain
J. Opt. Soc. Am. B 4(2) 211-218 (1987)

Quantum statistical theory of vibrational dynamics in a laser-driven admolecule-surface system

Xi-Yi Huang, Thomas F. George, and Jian-Min Yuan
J. Opt. Soc. Am. B 2(6) 985-992 (1985)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (35)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription