Authors: T V Kononenko M N Sinyavsky V I Konov M Sentis
Publish Date: 2013/05/21
Volume: 112, Issue: 3, Pages: 583-589
Abstract
Timeresolved interferometric microscopy was applied to investigate laserinduced blistering of a titanium film on a silica substrate Ablation of the titanium/silica interface by single 07 ns pulses within a certain fluence range results in local exfoliation of the metal film from the substrate avoiding however complete film destruction Timedependent transformation of the metal surface profile was reconstructed from the interference patterns within 0–13 ns time delay range Transverse annular waves with typical amplitude of one hundred of nanometers and estimated traveling speed of few kilometers per second were revealed on the blister surface The wave occurrence was attributed to fast inhomogeneous bending of the film covering the expanding blister The resultant highfrequency ∼1 GHz vibrations of the metal surface provide intensive inertial forces when such metalized target is used for blisterbased laserinduced forward transfer of nanopowders and organic moleculesThe authors would like to thank AF Popovich from General Physics Institute for participation in the target preparation The work has got a financial support in the frame of Federal Program “Scientific and Educational Specialists of Innovative Russia” Project P951 and from the Russian Foundation for Basic Research Grant 100293106
Keywords: