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Appl Opt. 1999 Mar 1;38(7):1237-43.

Deposition of SiO2 films with high laser damage thresholds by ion-assisted electron-beam evaporation.

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  • 1Istituto Nazionale di Fisica della Materia, Universit√† di Lecce, 73100 Lecce, Italy.


SiO(2) thin films (approximately 100 nm thick) with transmittivity and a laser damage threshold nearly equal to those of bulk material are deposited on silica substrates by the technique of ion-assisted electron-beam evaporation. The influence of film packing density on the laser damage threshold is investigated by the technique of photoacoustic probe beam deflection. It is shown that films with lower packing density may have a higher laser damage threshold and as a consequence better heat dissipation.

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