Raising damage thresholds of gradient-index antireflecting surfaces by pulsed laser irradiation

Journal Article · Sun Oct 31 23:00:00 EST 1982 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.93701· OSTI ID:6729773

Swain, J E; Lowdermilk, W H; Milam, D

Gradient-index antireflecting surfaces produced by neutral solution processing have a median surface damage threshold of 12 J/cm/sup 2/ for 1-ns, 1064-nm pulses. We have found that the threshold can be increased to 25 J/cm/sup 2/ by irradiating the surface with 1064-nm wavelength pulses with fluence below the initial 12-J/cm/sup 2/ threshold. Damage thresholds, both before and after this treatment, increased as the square root of the pulse duration in the 1--20-ns range.

• Research Organization: Lawrence Livermore National Laboratory, University of California, P. O. Box 5508, L-470, Livermore, California 94550
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6729773
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 41:9; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420500* -- Engineering-- Materials Testing
ANTIREFLECTION COATINGS
COATINGS
DAMAGE
DATA
DISPERSIONS
ELECTROMAGNETIC RADIATION
EQUATIONS
EXPERIMENTAL DATA
INFORMATION
INFRARED RADIATION
IRRADIATION
LASER RADIATION
MIXTURES
NUMERICAL DATA
OPTICAL PROPERTIES
PHYSICAL PROPERTIES
PULSES
RADIATIONS
REFRACTIVITY
SOLUTIONS
SURFACES