Spectral and temporal characteristics of metallic nanoparticles produced by femtosecond laser pulses

Abstract : We study the time of flight optical emission from titanium and tungsten nanosized particles, generated through femtosecond laser-matter interaction in vacuum, in the wavelength spectral range from 300 to 900 nm. Typical spectra consist of broadband structureless signals similar to black body emission from a macroscopic object. Nanoparticles temperature, deduced from their emission spectra, decreases drastically as a function of their time of arrival at a given distance from the target. This behaviour is seen to be independent of individual particle velocities. © 2005 Elsevier B.V. All rights reserved.
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Submitted on : Friday, June 28, 2013 - 2:26:46 PM
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D. Scuderi, Ratiba Benzerga, Bertrand Reynier, Olivier Albert, Jean Etchepare. Spectral and temporal characteristics of metallic nanoparticles produced by femtosecond laser pulses. Applied Surface Science, Elsevier, 2006, 252 (13 SPEC. ISS.), pp.4360-4363. ⟨10.1016/j.apsusc.2005.06.056⟩. ⟨hal-00830686⟩

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