Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 1R43GM058995-01
Amount: $93,452.00
Phase: Phase I
Program: SBIR
Awards Year: 1999
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
21720 23RD DR SE, #150, BOTHELL, WA, 98021
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
Business Contact
Phone: (206) 485-8566
Research Institution
Not Available The possibility that materials may be cooled through the interaction of electro-magnetic radiation was recognized as early as 1929. Fluorescent cooling occurs when a material absorbs radiation at one wavelength and fluoresces at a shorter wavelength. This is known as anti-stokes fluorescence. The difference is photon energy is made up of energy removed from the upper state thermal bands. Thus the material cools. Anti-stokes fluorescent cooling in solids has been demonstrated by means of atomic anti-stokes fluorescence in Yb+3 doped glass. However molecular systems--could be much more efficient than atomic systems if problems with long spontaneous lifetimes can be overcome. This can be done by means of intramolecular conversion of tautomers or by near resonance coupling of paired molecular systems. Such molecular systems could be an order of magnitude more efficient than atomic systems and the working materials fabricated at low cost. BENEFITS: Development of optical cooling will allow non-refrigerant cooling of detectors and integrated circuits.

* Information listed above is at the time of submission. *

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