Share Email Print
cover

Proceedings Paper

Micro cryogenic coolers for IR imaging
Author(s): Ryan Lewis; Yunda Wang; Jill Cooper; Martin Muhong Lin; Victor M. Bright; Y. C. Lee; Peter E. Bradley; Ray Radebaugh; Marcia L. Huber
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Joule-Thomson micro cryogenic coolers (MCCs) are a preferred approach for small and low power cryocoolers. With the same heat lift, MCC's power input can be only 1/10 of a thermoelectric cooler's input, and MCC's size can be only 1/10 of a Stirling cooler's size. With futuristic planar MCC and with high frequency MEMS compressors to be developed, its size can be reduced another order of magnitude. Such "invisible" cryocoolers may revolutionize future IR imaging systems. We will review our studies on the feasibility of MCC with an emphasis on: 1) high thermal isolation levels reaching 89,000 K/W; 2) custom-designed gas mixtures with refrigeration capabilities increased by 10X and pressure ratio reduced to only 4:1; 3) compressors with low pressure ratios; and 4) excellent scalability for further size reduction.

Paper Details

Date Published: 21 May 2011
PDF: 9 pages
Proc. SPIE 8012, Infrared Technology and Applications XXXVII, 80122H (21 May 2011); doi: 10.1117/12.886578
Show Author Affiliations
Ryan Lewis, Univ. of Colorado at Boulder (United States)
Yunda Wang, Univ. of Colorado at Boulder (United States)
Jill Cooper, Univ. of Colorado at Boulder (United States)
Martin Muhong Lin, Univ. of Colorado at Boulder (United States)
Victor M. Bright, Univ. of Colorado at Boulder (United States)
Y. C. Lee, Univ. of Colorado at Boulder (United States)
Peter E. Bradley, National Institute of Standards and Technology (United States)
Ray Radebaugh, National Institute of Standards and Technology (United States)
Marcia L. Huber, National Institute of Standards and Technology (United States)


Published in SPIE Proceedings Vol. 8012:
Infrared Technology and Applications XXXVII
Bjørn F. Andresen; Gabor F. Fulop; Paul R. Norton, Editor(s)

© SPIE. Terms of Use
Back to Top