[1] Vagni F. The Research and Technology Organization of NATO Technical Report, 2007.

[3] Green R O, Chrien T G, Niei Som P T, et al. SPIE, Proceedings, 1993, 1937: 180.

[4] Braam B M, Okkonen J T, Aikio M, et al. SPIE, Proceedings, 1993, 1937: 142.

[5] Babey S K, Anger C D. SPIE, Proceedings, 1993, 1937: 152.

[8] Offner A. U.S. Patent 3748015, 1973.

[9] Blanco X P, Orille C M, Cance B, et al. Optics Express, 2006, 14(20): 9156.

[11] Fisher J, Baumback M, Bowles J, et al. SPIE, Proceedings, 1998, 3438: 23.

[12] Stefan Kaiser, Bernhard Sang, Josef Schubert, et al. SPIE, Proceedings, 2008, 7100: 14.