Interferometric diagnostics of ablation craters formed by femtosecond laser pulses
| Autor: | A. S. Zakharov, M. V. Volkov, I. P. Gurov, V. V. Temnov, K. Sokolovski-Tinten, D. von der Linde |
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| Předmět: |
Femtosecond pulse shaping
Materials science business.industry Applied Mathematics medicine.medical_treatment General Engineering Phase (waves) Physics::Optics Ablation Laser Atomic and Molecular Physics and Optics Gallium arsenide law.invention Computational Mathematics Interferometry chemistry.chemical_compound Optics Interference (communication) chemistry law Femtosecond medicine business |
| Zdroj: | Scopus-Elsevier |
| Popis: | It is proposed to use methods of interferometry for quantitative analysis of the removal of material from the surface of a solid under the action of femtosecond laser pulses ~laser ablation craters!. The characteristics of the two-dimensional discrete nonlinear Kalman filter for noise-resistant recovery of the deconvolved phase of the pattern of interference fringes characterizing the ablation craters. We present the results of a processing of the two-dimensional interferograms obtained in reflection of light from gallium arsenide and zinc surfaces before and after a high-power femtosecond laser pulse acted on them. The experiment results confirm the high noise resistance of the proposed method of recovering the phase of the two-dimensional interference fringes. © 2002 Optical Society of America |
| Databáze: | OpenAIRE |
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