Lockheed Idaho Technologies Company, P.O. Box 1625, Idaho Falls, ID 83415-3521

A -- SOLID COLLOIDAL OPTICAL WAVELENGTH FILTER SOL Cbd1399 DUE 041399 POC Paul Grahovac WEB: Idaho National Engineering & Environmental Laboratory, http://www.inel.gov/procurement/litco/index.htm. E-MAIL: Paul Grahovac, pg2@inel.gov. A -- Solid colloidal optical wavelength filter. U. S. Patent Number 5,131,736. This is a potential technology development and licensing opportunity with Lockheed Martin Idaho Technologies Company (LMITCO), the prime operating contractor for the Department of Energy at the Idaho National Engineering and Environmental Laboratory (INEEL). Wavelength selection and wavelength selection elements are necessary in many optical measurements and techniques. Common elements are color filters and diffraction gratings. Color filters are usually broad band and of low efficiency. Diffraction gratings are necessarily bulky, fragile, and require multiple gratings to reject high intensity scattered light. Colloidal optical wavelength filters have been developed that are wavelength selective and are highly efficient with a narrow bandpass. However, these filters are short-lived and suffer from environmental limitations that are a characteristic of the liquid and the method of containment. In the field, such filters are inherently fragile. Use of liquid as the suspending medium causes the further problem of thermal lensing with intense radiation, and the properties of the liquid change as ions leach from the containment walls of the filter. An additional problem is that the refractive index of the filter is limited by the requirements of the ionic strength of the suspending liquid. This patented device is a solid colloidal optical wavelength filter utilizing a solid medium such as a setting plastic. It is designed to overcome the problems above by providing new and improved technology for filtering optical wavelengths for purposes of spectroscopy, protection from intense radiation, and monochromatizing, for analyzing optical radiation, for filtering optical wavelengths in which the filter has a constant refractive index, for filtering optical wavelengths that have fewer environmental limitations, possess longer lives, are less fragile and can be used in the field, and for maintaining constant filter properties. LMITCO is seeking a written indication of interest from industry partners interested in funding a collaborative technology development project and/or entering into a license agreement for the purpose of developing and commercializing this technology. License terms will include an up-front licensing fee and a running royalty based on a percentage of sales. This is not an opportunity to provide goods or services to LMITCO or the Department of Energy. This Request for Interest (RFI) will close to response 30 days after publication. Interested parties should send e-mail to pg2@inel.gov (Paul Grahovac, Account Executive, Technology Transfer Office, LMITCO). If you do not have e-mail access, send regular mail to Paul Grahovac, Account Executive, Technology Transfer Office, LMITCO, P. O. Box 1625, Idaho Falls, ID 83415-3805. Posted 03/12/99 (W-SN307905). (0071)

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