Enhancement of debris attachment in phase-shifted ultrashort-pulse laser ablation
説明
A 130fs laser pulse in which half of beam cross-section is phase-shifted regarding the other half carry out enhancement of debris attachment along diameter and periodical deposition corresponding to intensity variation due to Fresnel diffraction. The phase-shifted ultra-short laser pulsed was used to ablate the metallic targets. The phase shift is accomplished by using a phase-edge mirror with a step of Al coating with a height of a quarter wavelength of laser light. An abrupt intensity change was obtained by the phase-shift.
収録刊行物
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- Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464)
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Technical Digest. CLEO/Pacific Rim '99. Pacific Rim Conference on Lasers and Electro-Optics (Cat. No.99TH8464) 3 690-691, 2003-01-20
IEEE