Effect of oil vapor contamination on the performance of porous silica sol-gel antireflection-coated optics in vacuum spatial filters of high-power neodymium glass laser

Optical Engineering

Volumn 47, Issue 2, 2008, Pages

  Pareek, R ^a   Kumbhare, M N ^a   Mukherjee, C ^a   Joshi, A S ^a   Gupta, P D ^a  

^a RAJA RAMANNA CENTRE FOR ADVANCED TECHNOLOGY   (India)

Author keywords

Laser induced damage threshold; Sol gel antireflection coatings; Vacuum oil vapor contamination; Vacuum spatial filter

Indexed keywords

ANTIREFLECTION COATINGS; BANDPASS FILTERS; BEAMFORMING; COATINGS; CONTAMINATION; GLASS LASERS; HIGH POWER LASERS; REFLECTION; REFRACTIVE INDEX; SILICA; SOL-GEL PROCESS; SOL-GELS;

HEXAMETHYLDISILAZANE; IMAGINARY PARTS; LASER INDUCED DAMAGE THRESHOLDS; LASER OPERATIONS; NEODYMIUM GLASS LASERS; OIL VAPOR; SOL-GEL ANTIREFLECTION COATINGS; SPATIAL FILTERS;

LASER DAMAGE;

EID: 79952316362     PISSN: 00913286     EISSN: 15602303     Source Type: Journal    
DOI: 10.1117/1.2844551     Document Type: Article

References (15)

1. I. M. Thomas, "High laser damage threshold porous silica AR coatings," Appl. Opt. 25, 1481-1483 (1981).
2. I. M. Thomas, "Preparation of dielectric HR mirrors from colloidal oxide suspentions containing organic polymer binders," Proc. SPIE 2288, 50-55 (1994).
3. R. Pareek, A. S. Joshi, P. D. Gupta, P. K. Biswas, and S. Das, "Sol-gel based anti-reflection coatings on wedged laser rods using a spin coater," Opt. Laser Technol. 37, 369-374 (2005).
4. P. K. Biswas, P. Sujatha Devi, P. K. Chakraborty, A. Chatterjee, D. Ganguli, M. P. Kamath, and A. S. Joshi, "Porous anti-reflective silica coatings with a high spectral coverage by sol gel spin coating technique," J. Mater. Sci. Lett. 22, 181-184 (2003).
5. P. J. Wenger, M. A. Henesian, D. R. Speck, C. Bibeau, R. B. Ehrlich, C. W. Laumann, J. K. Lawson, and T. L. Welland, "Harmonic conversion of large aperture 1.05-μm laser beams for inertial-confinement fusion research," Appl. Opt. 31, 6414-6426 (1992).
6. E. M. Campbell, J. T. Hunt, E. S. Bliss, D. R. Speck, and R. P. Drake, "Nova experimental facility," Rev. Sci. Instrum. 57, 2101-2106 (1986).
7. T. R. Boehly, D. L. Brown, R. S. Craxton, R. L. Keck, J. P. Knauer, J. H. Kelly, T. J. Kessler, S. A. Kumpan, S. J. Loucks, S. A. Letzring, S. J. Marshall, R. L. McCRory, S. F. B. Morse, W. Seka, J. M. Soures, and C. P. Verdon, "Initial performance results of OMEGA laser system," Opt. Commun. 133, 495-506 (1987).
8. A. S. Joshi, C. P. Navathe, M. S. Ansari, M. P. Kamath, S. Bandyopadhyay, A. Upadhyay, A. P. Kulkarni, P. K. Tripathi, P. Khare, S. R. Patwa, J. D. Singh, N. Sreedhar, R. Chandra, M. N. Kumbhare, and H. C. Pant, "Development of high power laser and relevant technology in India," Fusion Eng. Des. 44, 67-70 (1999).
9. A. L. Regatti, and D. J. Smith, "Status of optics on OMEGA laser after 18 months of operation," Proc. SPIE 2966, 441-450 (1997).
10. J. H. Campbell, C. E. Barker, B. M. Van Wonterghem, D. R. Speck, W. C. Behrendt, J. R. Murrey, J. A. Caird, D. E. Decker, and I. C. Smith, "Performance results for BEAMLET: a large aperture, multipass Nd: glass laser," Lawerence Livermore National Laboratory Report, UCRL 120799 (1995).
11. P. G. Wenger, "Laser program annual report, Lawerence Livermore National Laboratory Report," UCRL-50021-87, 3-16 (1987).
12. I. M. Thomas, A. K. Burnham, J. R. Ertel, and S. C. Frieders, "Method for reducing the effect of environmental contamination of sol-gel optical coatings," Proc. SPIE 3492, 220-228 (1998).
13. P. F. Belleville and H. G. Floch, "Ammonia hardening of porous silica antireflective coatings," Proc. SPIE 2288, 25-32 (1994).
14. H. A. Macleod, Thin Film Optical Filters, pp. 86-156, Institute of Physics Publishing, London (2001).
15. N. Bloembergen, "Role of cracks, pores and absorbing inclusions on laser damage threshold at surfaces of transparent dielectrics," Appl. Opt.. 12, 661-664 (1973).