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A -- Real-time Acoustic Imaging Device for Read Out of Sensor Arrays (OB1854246) (2007-01-23)

The Idaho National Laboratory (INL) has developed a Laser Ultrasonic
Microscope, which allows for rapid full field real-time imaging of micro sized
devices, including arrays of sensors or surface acoustic wave (SAW) devices.
These micro arrays include arrays of quartz crystal microbalances, surface
acoustic wave transducers, and thin film bulk linear and/or torsional acoustic
resonators wherein the factor that causes a response may be biological,
chemical, physical, material, thermal, acoustic, electromagnetic and/or
combinations thereof.

INL?s acoustic imaging technique utilizes a laser to illuminate the entire
surface of a vibrating object and a camera to read information about the
vibration amplitude and phase everywhere on the surface of the object. This is
accomplished when a reflected laser light is combined with a reference beam to
perform dynamic holographic image processing in a photorefractive material
such as Bismuth Silicon Oxide (BSO). The interaction between the light and the
photorefractive material demodulates the vibration information, and displays
this information as a gray scale image. Each point or pixel on the image
corresponds to a point on the surface of the vibrating surface of the object
and the pixel intensity is directly proportional to the amplitude of the
vibration at that point. Thus, a image is produced of the distribution of
vibrational amplitudes everywhere on the surface, all at once, without
scanning.

When the vibrating object is a collection of individual vibrating structures
the INL technology displays a complex vibration distribution where one or more
pixels is assigned to each vibrating subunit. If these subunits are individual
sensors in an array of micro-vibratory chemical sensors, then one can directly
detect the individual resonant frequencies. This information can be recorded
by a video camera, digitized and displayed, stored or used for further
analysis.

The INL is soliciting interest from qualified industrial firms interested in
participating in projects and commercializing this technology. It is
anticipated that the project will be carried out through a Cooperative
Research and Development Agreement with funding support being provided by the
participant(s). The INL has several patents on the process. See U.S. Patent
Nos. 5,827,971, 6,134,006, 6,175,411, 6,486,962, and 6,401,540. See also
published U.S. Patent Application Nos. 10/267,320, 10/267,237, and
11/130,853. These patents may be licensed exclusively or non-exclusively.
The INL invites interested parties to contact us regarding the details of
licensing and implementing this technology into an operation. Interested
parties should respond on or before within 90 days from the date of posting.
For questions regarding this technology, licensing, and working with the INL,
please contact Jason Stolworthy:

BUSINESS POINT OF CONTACT: Jason C. Stolworthy, J.D., M.S. (ChE) Telephone:
208-526-5976 E-Mail: [Please use the link below]

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