Abstract

A setup incorporating electronic speckle pattern interferometry, reference beam phase modulation, chopped laser light, and a simple microscope has been used to observe vibrations of the basilar membrane in human temporal bones. A postmortem effect ensures that no special treatment of the semitransparent membrane is required. Amplitudes (down to 20 Å) and phases of the membrane motion are analyzed both in real time and video recordings. Observations include phase variations across the membrane and motions of Mossbauer sources (pieces of cobalt) on the membranes.

© 1981 Optical Society of America

Full Article  |  PDF Article
More Like This
Detection and measurement of small vibrations using electronic speckle pattern interferometry

Kåre Høgmoen and Ole J. Løkberg
Appl. Opt. 16(7) 1869-1875 (1977)

Interferometric comparison of displacements by electronic speckle pattern interferometry

Ole J. Løkberg and Gudmunn Å. Slettemoen
Appl. Opt. 20(15) 2630-2634 (1981)

Vibration measurement on the human ear drum in vivo

O. J. Løkberg, K. Høgmoen, and O. M. Hoije
Appl. Opt. 18(6) 763-765 (1979)

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

Contact your librarian or system administrator
or
Login to access Optica 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 Optica member, or as an authorized user of your institution.

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

Figures (7)

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 (5)

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

Metrics