Tuning spectral properties of ultrafast laser ablation plasmas from brass using adaptive temporal pulse shaping

Using automated laser pulse temporal shaping we report on enhancing spectral emission characteristics of ablation plasmas produced by laser irradiation of brass on ultrafast time scales. For different input irradiance levels, control of both atomic and ionic species becomes possible concerning the y...

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Bibliographic Details
Published in:Optics express 2010-05, Vol.18 (11), p.11159-11172
Main Authors: Guillermin, M, Klini, A, Colombier, J P, Garrelie, F, Gray, D, Liebig, C, Audouard, E, Fotakis, C, Stoian, R
Format: Article
Language:English
Subjects:
Copper - chemistry
Copper - radiation effects
Engineering Sciences
Gases - chemistry
Gases - radiation effects
Hot Temperature
Lasers
Manufactured Materials
Materials Testing
Optics
Photonic
Radiation Dosage
Zinc - chemistry
Zinc - radiation effects
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Summary:Using automated laser pulse temporal shaping we report on enhancing spectral emission characteristics of ablation plasmas produced by laser irradiation of brass on ultrafast time scales. For different input irradiance levels, control of both atomic and ionic species becomes possible concerning the yield and the excitation state. The improved energy coupling determined by tailored pulses induces material ejection with lower mechanical load that translates into hot gas-phase regions with higher excitation degrees and reduced particulates.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.18.011159