Fluorescent refrigeration

Details Fluorescent refrigeration Fluorescent refrigeration

1994-04-19

1995-09-05

Wayner, William E.

Refrigeration

Using electrical or magnetic effect

62 37, 62467, F25B 2100

Patent

active

054470323

ABSTRACT:
Fluorescent refrigeration is based on selective radiative pumping, using substantially monochromatic radiation, of quantum excitations which are then endothermically redistributed to higher energies. Ultimately, the populated energy levels radiatively deexcite emitting, on the average, more radiant energy than was initially absorbed. The material utilized to accomplish the cooling must have dimensions such that the exciting radiation is strongly absorbed, but the fluorescence may exit the material through a significantly smaller optical pathlength. Optical fibers and mirrored glasses and crystals provide this requirement.

REFERENCES:
patent: 3703813 (1972-11-01), Olevitch et al.
patent: 4628695 (1986-12-01), Berdahl
Shaul Yatsiv, "Anti-Stokes Fluorescence as a Cooling Process," in Advances in Quantum Electronics, Jay R. Singer, Ed., (Columbia University Press, 1961) pp. 200-213.
T. Kushida et al., "Optical Refrigeration in Nd-Doped Yttrium Aluminum Garnet," Phys. Rev. Letters 21, 1172 (1968).

Affiliated with

Also associated with

Rating

Fluorescent refrigeration does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluorescent refrigeration, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluorescent refrigeration will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-466498