Damage behavior of HfO<sub>2</sub> monolayer film containing gold nanoparticles as artificial absorbing defects

S. Papernov; A.W. Schmid; A.L. Rigatti; J.B. Oliver; J.D. Howe

doi:10.1117/12.638181

7 February 2006 Damage behavior of HfO₂ monolayer film containing gold nanoparticles as artificial absorbing defects

S. Papernov, A.W. Schmid, A.L. Rigatti, J.B. Oliver, J.D. Howe

Proceedings Volume 5991, Laser-Induced Damage in Optical Materials: 2005; 59911D (2006) https://doi.org/10.1117/12.638181
Event: Boulder Damage Symposium XXXVII: Annual Symposium on Optical Materials for High Power Lasers, 2005, Boulder, CO, United States

Abstract

Hafnia is one of the most utilized high-index materials in thin-film multilayer coatings for high-power lasers. It is well established that in the HfO₂/SiO₂ multilayers for 351 nm, nanosecond-pulse applications the damage is driven by the nanoscale absorbers localized in the hafnia layers. In this work, damage-crater formation thresholds and morphology are investigated for the undoped HfO₂ monolayer films and films containing isolated gold nanoparticles of 2- and 5-nm average diameter. Atomic force microscopy is used for characterization of the damage craters produced by 351-nm, 0.5 ns laser pulses. This comparative study of crater-geometry variation with laser fluence for doped and undoped films allowed the estimation of properties of the intrinsic absorbing defects in the hafnia films.

Citation Download Citation

S. Papernov, A.W. Schmid, A.L. Rigatti, J.B. Oliver, and J.D. Howe "Damage behavior of HfO₂ monolayer film containing gold nanoparticles as artificial absorbing defects", Proc. SPIE 5991, Laser-Induced Damage in Optical Materials: 2005, 59911D (7 February 2006); https://doi.org/10.1117/12.638181

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