In situ detection and analysis of laser-induced damage on a 1.5-m multilayer-dielectric grating compressor for high-energy, petawatt-class laser systems.
Opt Express
; 18(10): 10423-31, 2010 May 10.
Article
in En
| MEDLINE
| ID: mdl-20588897
ABSTRACT
A grating-inspection system and a damage-analysis method have been developed to measure in situ laser-induced damage on a 1.5-m tiled-grating assembly of the OMEGA EP pulse compressor during a 15-ps, 2.2-kJ energy ramp. The beam fluence at which significant damage growth occurred was determined. This is the first report on beam fluence versus laser-induced-damage growth of meter-sized multilayer-dielectric-diffraction gratings. This result was correlated to the damage-probability measurement conducted on a small grating sample and is consistent with the fluence, corresponding to 100% damage probability.
Full text:
1
Database:
MEDLINE
Main subject:
Refractometry
/
Lasers
Type of study:
Diagnostic_studies
Language:
En
Year:
2010
Type:
Article