Effects of cryocontaminants on cryogenic superpolished mirror and superpolished quartz crystal microbalance

Bryan L. Seiber; Robert J. Bryson; Raymond P. Young Sr.; Bob E. Wood; Deidra A. Dykeman

doi:10.1117/12.140734

18 December 1992 Effect of cryocontaminants on cryogenic superpolished mirror and superpolished quartz crystal microbalance

Bryan L. Seiber, Robert J. Bryson, Raymond P. Young Sr., Bob E. Wood, Deidra A. Dykeman

Author Affiliations +

Proceedings Volume 1754, Optical System Contamination: Effects, Measurement, Control III; (1992) https://doi.org/10.1117/12.140734
Event: San Diego '92, 1992, San Diego, CA, United States

Abstract

Many systems contain cryogenic optical systems that operate at temperatures where gases such as nitrogen, oxygen, carbon dioxide, and water will condense. This study presents experimental results of the effects of these gases condensed on highly polished (superpolished) mirror surfaces cooled to temperatures as low as 15 K under vacuum conditions. Using these gases as contaminants, the bidirectional reflectance distribution function was obtained at a wavelength of 0.6328 micron for various contaminant film thicknesses up to 8 microns. Most of the data were obtained using as the mirror surface the superpolished sense crystal of a previously developed quartz crystal microbalance (SPQCM). The SPQCM allowed the mass of the actual contaminant layer to be measured directly.

Citation Download Citation

Bryan L. Seiber, Robert J. Bryson, Raymond P. Young Sr., Bob E. Wood, and Deidra A. Dykeman "Effect of cryocontaminants on cryogenic superpolished mirror and superpolished quartz crystal microbalance", Proc. SPIE 1754, Optical System Contamination: Effects, Measurement, Control III, (18 December 1992); https://doi.org/10.1117/12.140734

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available