Abstract

Surface light-scattering measurements have been carried out on thin asymmetric films of pentane on water. We vary the film thickness ℓ over a wide range (10-9 m < ℓ < 10-5 m). Compared with the ripplons wavelength 1/q, thick films of pentane (ℓ ≫ 1/q) display the same power spectrum as a pure pentane–vapor interface: a single peak. When thinning the film down to ℓ ≈ 1/q, hydrodynamic coupling between the layers of the interface is revealed by the appearance of a second peak beside the first one. We describe the thickness dependence of the two coupled modes through variations of the positions, the widths, and the amplitudes of both peaks.

© 2001 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Surface fluctuation spectroscopy by surface-light-scattering spectroscopy

J. Adin Mann, Paul D. Crouser, and William V. Meyer
Appl. Opt. 40(24) 4092-4112 (2001)

Advances in surface-light-scattering instrumentation and analysis: noninvasive measuring of surface tension, viscosity, and other interfacial parameters

William V. Meyer, Gerard H. Wegdam, Denis Fenistein, and J. Adin Mann
Appl. Opt. 40(24) 4113-4133 (2001)

Surface response functions for a thin-film between fluids with infinite boundaries and for a fluid-fluid interface between finite boundaries

William V. Meyer, J. Adin Mann, Jr., and Gerard H. Wegdam
Appl. Opt. 45(10) 2174-2185 (2006)

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

Figures (4)

You do not have subscription access to this journal. Figure files 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 (5)

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