OSA's Digital Library

Optics InfoBase > Conference Papers > PEMD > 2001 > AI > Page 290 © 2001 OSA

Conference Paper
Photorefractive Effects, Materials, and Devices
Delavan, Wisconsin United States
July 8, 2001
ISBN: 1-55752-693-1
Adaptive Interferometry (AI)

Homodyne Detection of Ultrasound Through Turbid Media Using an Adaptive Interferometer

P. Yu, D. D. Nolle, and M. R. Melloch

View Full Text Article

Acrobat PDF (910 KB) Note that full-text PDFs from conferences typically contain 1-3 pages of content, some or all of which might be an abstract, summary, or miscellaneous items.





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations
  • Export Citation/Save Click for help

Abstract

We demonstrate laser-based adaptive ultrasonic detection through turbid media using a photorefractive quantum well as a receiver, and a fsec-laser as a light source. An adaptive Mach-Zehnder interferometer is based upon two-wave mixing for homodyne detection. When the fsec-laser propagates through the turbid media, the transmitted light shows the first arrived unscattered signals and the delayed scattered background. Two laser pulses from a signal arm and a reference arm in the interferometer are combined at the adaptive holographic quantum well film. By choice of center wavelength, the two pulses are phase-locked for compensation of wavefront phase distortions. In addition, the scattered background is eliminated by adjusting the optical delay of the reference arm. Using this system, ultrasonic homodyne signals through 11 mean-free paths (mfp) turbid media are successfully detected.

© 2001 Optical Society of America

OCIS Codes
(120.2880) Instrumentation, measurement, and metrology : Holographic interferometry
(120.2920) Instrumentation, measurement, and metrology : Homodyning
(120.4290) Instrumentation, measurement, and metrology : Nondestructive testing
(160.5320) Materials : Photorefractive materials

Citation
P. Yu, D. D. Nolle, and M. R. Melloch, "Homodyne Detection of Ultrasound Through Turbid Media Using an Adaptive Interferometer," in Photorefractive Effects, Materials, and Devices, G. Salamo and A. Siahmakoun, eds., Vol. 62 of OSA Trends in Optics and Photonics (Optical Society of America, 2001), paper 290.
http://www.opticsinfobase.org/abstract.cfm?URI=PEMD-2001-290


Sort:  Journal  |  Reset

References

References are not available for this paper.

OSA is a member of CrossRef.

CrossCheck Deposited