Optics: measuring and testing – By light interference – Using fiber or waveguide interferometer
Reexamination Certificate
2007-10-16
2010-10-12
Lee, Hwa S. A (Department: 2886)
Optics: measuring and testing
By light interference
Using fiber or waveguide interferometer
Reexamination Certificate
active
07812960
ABSTRACT:
A new optical ultrasonic analysis transducer is described. The device includes a new detection means for the reflected ultrasound signal. The detector may be incorporated into a microchip design. The detector is compatible with a variety of material and design geometries that may be optimized for the particular application. Versions of the device may optionally include both excitation and receiving elements on the same device or these elements may be separate. Example designs are shown with applications to continuous wave ultrasound analysis useful for example in Doppler fluid flow measurements. Other designs are shown with multiple arrays and multiple excitation transducers to allow flexible three-dimensional imaging apparatus to be built. An equivalent circuit analysis of the frequency response and signal sensitivity provides means to customize material selection and other design parameters for particular applications.
REFERENCES:
patent: 5091983 (1992-02-01), Lukosz
patent: 5448058 (1995-09-01), Arab-Sadeghabadi
patent: 6200266 (2001-03-01), Shokrollahi
patent: 6208590 (2001-03-01), Kim
patent: 6314056 (2001-11-01), Bunn
patent: 6496264 (2002-12-01), Goldner
patent: 6728165 (2004-04-01), Roscigno
patent: 7245789 (2007-07-01), Bates
patent: 2005/0002628 (2005-01-01), Rahman
patent: 2005/0157305 (2005-07-01), Yu
De Lima, Beck, Hey, Santos, Compact Mach-Zehnder acousto-optic Modulator, Applied Physics Letters, 2006, vol. 89, 121104, American Institute of Physics, USA.
Lemaitre-Auger, Acoustic-optic intensity modulation on glass integrated optic, Integrated Optics:Devices, Materials, and Tech. VIII, Proc. of SPIE, 2004, vol. 5355, 120, USA.
Schott North America, Inc., Technical Information: Optics for Devices, TIE-27: Stress in Optical Glass, Jul. 2004, Schott North America, USA.
W. P. Mason, Physical Acoustics and the Properties of Solids. D. Van Nostrand Company, Princeton, New Jersey. 1958.
M. G. Silk, Utrasonic Transducers for Nondestructive Testing, Adam Hilger Ltd., Bristol, OK, 1984.
Thomas L. Szabo, Diagnostic Ultrasound Imaging: Inside Out, Elsevier Academic Press, San Diego, CA, 2004.
A Lee Hwa S.
Wisnosky Mark
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