Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Optical generation of coherent surface acoustics: an optically based probe of surface structure and dynamics

Not Accessible

Your library or personal account may give you access

Abstract

Above-band-gap picosecond pulses are used to generate holographically high-frequency, coherent, surface acoustic modes on semiconductor surfaces. Optical diffraction from the surface acoustics is in superposition to a free-carrier phase grating that acts as an amplifying cross term in the diffraction process. The detection limits are of the order of 10−4 nm for the surface displacement. Frequencies up to 2 GHz have been realized, with frequencies >20 GHz possible. A quantitative theory for the photothermal coupling has been developed. In addition, propagation of the optically generated surface modes has revealed a solid–liquid phase transition of the water layer at TiO2–H2O interfaces.

© 1988 Optical Society of America

Full Article  |  PDF Article
More Like This
Optical second-harmonic generation as a surface probe for noncentrosymmetric media

T. Stehlin, M. Feller, P. Guyot-Sionnest, and Y. R. Shen
Opt. Lett. 13(5) 389-391 (1988)

Probing of Acoustic Surface Perturbations by Coherent Light

R. L. Whitman and A. Korpel
Appl. Opt. 8(8) 1567-1576 (1969)

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 Optica member, or as an authorized user of your institution.

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

Figures (2)

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

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

Equations (10)

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

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved