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Laser-Induced Damage in Doped and Undoped Fluorozirconate Glass Pages: 12 Published: Jan 1988
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View License Agreement Source: STP1015-EB Abstract Results of laser-induced damage studies in doped and undoped fluorozirconate (FZ) glass in the system of ZrF4-BaF2-LaF3-AlF3 are reported. Measurements were made at 1.06 and 0.53 μm for pulsewidths of 45 psec and 20 nsec (FWHM), respectively. The breakdown thresholds are significantly reduced for material doped with Cr, Mn, Ni, and Nd. The decrease in breakdown thresholds at the fundamental wavelength (λ) for the doped material was found to be roughly proportional to the linear absorption of the specimen at the second harmonic (λ/2). This suggests that two-photon absorption (2PA) is instrumental in initiating damage in the doped specimens. Keywords: avalanche breakdown, fluorozirconate glasses: laser-induced damage, nanosecond pulses, picosecond pulses, two-photon absorption Paper ID: STP18732S Committee/Subcommittee: F01.02 DOI: 10.1520/STP18732S ASTM International is a member of CrossRef. | ||