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- Title
Resonance absorption enhancement in laser-generated plasma ablating Cu treated surfaces.
- Authors
Torrisi, L.; Cutroneo, M.; Caridi, F.; Gentile, C.
- Abstract
Resonant absorption effects for 1.064 µm infrared laser pulse radiations are investigated by using different techniques producing micrometric surface structures with dimensions comparable to the wavelength value. The laser absorption is controlled through measurement of the Cu ion acceleration using time-of-flight approach. Surface treatments include low energy laser etching in air, deposition of microspheres obtained ablating Cu targets in water, pulse laser deposition of microstructures precursor of thin homogeneous film, chemical etching with HNO3 acid, Ar+ ion sputtering and rolling burnishing surface of thin Cu foils. Results indicate that the best resonance effect is obtained with the rolling burnishing, ion sputtering and microsphere deposition processes which enhance the Cu ion energy and the yield emission.
- Subjects
ABSORPTION; LASER plasmas; COPPER surfaces; COPPER ions; RADIATION; INFRARED lasers; WAVELENGTHS; TIME-of-flight measurements; RESONANCE
- Publication
Laser & Particle Beams, 2013, Vol 31, Issue 1, p37
- ISSN
0263-0346
- Publication type
Article
- DOI
10.1017/S0263034612000936