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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 9 — Mar. 20, 2011
  • pp: C340–C348

Comparisons between laser damage and optical electric field behaviors for hafnia/silica antireflection coatings

John Bellum, Damon Kletecka, Patrick Rambo, Ian Smith, Jens Schwarz, and Briggs Atherton  »View Author Affiliations


Applied Optics, Vol. 50, Issue 9, pp. C340-C348 (2011)
http://dx.doi.org/10.1364/AO.50.00C340


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Abstract

We compare designs and laser-induced damage thresholds (LIDTs) of hafnia/silica antireflection (AR) coatings for 1054 nm or dual 527 nm / 1054 nm wavelengths and 0 ° to 45 ° angles of incidence (AOIs). For a 527 nm / 1054 nm , 0 ° AOI AR coating, LIDTs from three runs arbitrarily selected over three years are 20 J / cm 2 or higher at 1054 nm and < 10 J / cm 2 at 527 nm . Calculated optical electric field intensities within the coating show two intensity peaks for 527 nm but not for 1054 nm , correlating with the lower (higher) LIDTs at 527 nm ( 1054 nm ). For 1054 nm AR coatings at 45 ° and 32 ° AOIs and S and P polarizations (Spol and Ppol), LIDTs are high for Spol ( > 35 J / cm 2 ) but not as high for Ppol ( > 30 J / cm 2 at 32 ° AOI; 15 J / cm 2 at 45 ° AOI). Field intensities show that Ppol discontinuities at media interfaces correlate with the lower Ppol LIDTs at these AOIs. For Side 1 and Side 2 dual 527 nm / 1054 nm AR coatings of a diagnostic beam splitter at 22.5 ° AOI, Spol and Ppol LIDTs ( > 10 J / cm 2 at 527 nm ; > 35 J / cm 2 at 1054 nm ) are consistent with Spol and Ppol intensity behaviors.

© 2011 Optical Society of America

OCIS Codes
(140.3440) Lasers and laser optics : Laser-induced breakdown
(310.0310) Thin films : Thin films
(310.1210) Thin films : Antireflection coatings
(310.6860) Thin films : Thin films, optical properties
(310.5448) Thin films : Polarization, other optical properties

History
Original Manuscript: August 16, 2010
Revised Manuscript: December 16, 2010
Manuscript Accepted: December 17, 2010
Published: February 1, 2011

Citation
John Bellum, Damon Kletecka, Patrick Rambo, Ian Smith, Jens Schwarz, and Briggs Atherton, "Comparisons between laser damage and optical electric field behaviors for hafnia/silica antireflection coatings," Appl. Opt. 50, C340-C348 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-9-C340


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References

  1. J. Bellum, D. Kletecka, P. Rambo, I. Smith, M. Kimmel, J. Schwarz, M. Geissel, G. Copeland, B. Atherton, D. Smith, C. Smith, and C. Khripin, “Meeting thin film design and production challenges for laser damage resistant optical coatings at the Sandia Large Optics Coating Operation,” Proc. SPIE 7504, 75040C (2009). [CrossRef]
  2. National Ignition Facility (NIF) of Lawrence Livermore National Laboratory, “Small Optics Laser Damage Test Procedure,” Tech. Rep. MEL01-013-0D (Lawrence Livermore National Laboratory, 2005).
  3. A. V. Smith, B. T. Do, J. Bellum, R. Schuster, and D. Collier, “Nanosecond, 1064 nm damage thresholds for bare and anti-reflection coated silica surfaces,” Proc. SPIE 7132, 71321T (2008). [CrossRef]
  4. M. Born and E. Wolf, Principles of Optics (Pergamon, 1980).
  5. N.Kaiser and H.K.Pulker, eds., Optical Interference Coatings (Springer-Verlag, 2003).
  6. R. M. Wood, Laser-Induced Damage of Optical Materials(Institute of Physics Publishing, 2003). [CrossRef]
  7. J. Bellum, D. Kletecka, M. Kimmel, P. Rambo, I. Smith, J. Schwarz, B. Atherton, Z. Hobbs, and D. Smith, “Laser damage by ns and sub-ps pulses on hafnia/silica anti-reflection coatings on fused silica double-sided polished using zirconia or ceria and washed with or without an alumina wash step,” Proc. SPIE 7842, 784208 (2010). [CrossRef]

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