Abstract
Highly reflective LaF3/MgF2 systems for a wavelength of 248 nm on MgF2 and crystalline quartz substrates were investigated. The influence of laser conditioning on damage threshold and absorptance was remarkable in those coatings that had a high initial absorptance. Monitoring with a laser calorimeter revealed the conditioning effect to be a function of the irradiation dose rather than of energy density or pulse rate. Furthermore, x-ray photoelectron spectroscopy and transmission electron microscopy investigations showed that conditioning induces stoichiometric and structural changes in the multilayers, especially in near-surface sublayers, whereas scanning electron microscopy and atomic force microscopy investigations indicated that the surface remains unchanged.
© 1996 Optical Society of America
Full Article | PDF ArticleMore Like This
Detlev Ristau, Stefan Günster, Salvador Bosch, Angela Duparré, Enrico Masetti, Josep Ferré-Borrull, George Kiriakidis, Francesca Peiró, Etienne Quesnel, and Alexander Tikhonravov
Appl. Opt. 41(16) 3196-3204 (2002)
Ming-Chung Liu, Cheng-Chung Lee, Masaaki Kaneko, Kazuhide Nakahira, and Yuuichi Takano
Appl. Opt. 45(7) 1368-1374 (2006)
Ming-Chung Liu, Cheng-Chung Lee, Bo-Huei Liao, Masaaki Kaneko, Kazuhide Nakahira, and Yuuichi Takano
Appl. Opt. 47(13) C214-C218 (2008)