Oxyfluoride glass for high-energy laser windows: Thermal lensing issue

Applied Physics Letters

Volumn 87, Issue 23, 2005, Pages 1-3

  Klein, Claude A ^a  

^a Cak Analytics   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

GLASS COMPOSITION; LASER WINDOWS; OXYFLUORIDE GLASS; STREHL-RATIO CALCULATION; THERMAL LENSING;

COMPOSITION; ENERGY ABSORPTION; LASER WINDOWS; LENSES;

GLASS;

EID: 28444478352     PISSN: 00036951     EISSN: None     Source Type: Journal    
DOI: 10.1063/1.2140877     Document Type: Article

References (13)

1. K. Billman, D. Tran, K. Levin, S. Daigneault, and N. Edwards, Proc. SPIE 5647, 207 (2005).
2. OFG Glass Specs, available at 〈 http://www.infraredfibersystems.com/ prod03.htm 〉 dated 12/7/04.
3. V. McMillan, T. Weeks, R. Hiddleston, F. White, and R. Korniski, 6th Annual Directed Energy Symposium, Albuquerque, New Mexico, 2003 (unpublished).
4. J. Jasperse and P. Gianino, J. Appl. Phys. 43, 1686 (1972).
5. M. Born and E. Wolf, Principles of Optics (Pergamon, Oxford, 1975).
6. C. Klein, J. Appl. Phys. 98, 043103 (2005).
7. M. Sparks, J. Appl. Phys. 42, 5029 (1971).
8. C. Klein, Opt. Eng. (Bellingham) 29, 343 (1990).
9. J. Nye, Physical Properties of Solids (Clarendon, Oxford, 1976).
10. C. Klein, Appl. Phys. Lett. 35, 52 (1979). In this connection, I note that it has become current practice (W. Goodman, private communication, 2005) to make use of an "Air Force Figure of Demerit" equal to 1 FoMW, with χ set equal to χ+, for the purpose of selecting potentially athermal HEL window materials. This figure of demerit has no merit on two counts: (1) The coefficient χ+ does not properly characterize the vulnerability to thermal lensing of dndT<0 materials that exhibit stress birefringence, and (2) Fo MW measures the performance of coated window of thickness L and not the intrinsic merit of a window-material candidate.
11. C. Klein, Appl. Phys. Lett. 35, 52 (1979). In this connection, I note that it has become current practice (W. Goodman, private communication, 2005) to make use of an "Air Force Figure of Demerit" equal to 1 FoMW, with χ set equal to χ+, for the purpose of selecting potentially athermal HEL window materials. This figure of demerit has no merit on two counts: (1) The coefficient χ+ does not properly characterize the vulnerability to thermal lensing of dndT<0 materials that exhibit stress birefringence, and (2) Fo MW measures the performance of coated window of thickness L and not the intrinsic merit of a window-material candidate.
12. D. Holmes and P. Avizonis, Appl. Opt. 15, 1075 (1976).
13. T. McCarthy-Brow and D. Seegmiller, Proc. SPIE 1307, 463 (1990).