Micromachining of a thin film by laser ablation using femtosecond laser with masks
β Scribed by Yoshiki Nakata; Tatsuo Okada; Mitsuo Maeda
- Book ID
- 108232263
- Publisher
- Elsevier Science
- Year
- 2004
- Tongue
- English
- Weight
- 298 KB
- Volume
- 42
- Category
- Article
- ISSN
- 0143-8166
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Laser micromachining on 1000 nm-thick gold ΓΏlm using femtosecond laser has been studied. The laser pulses that are used for this study are 400 nm in central wavelength, 150 fs in pulse duration, and the repetition rate is 1 kHz. Plano-concave lens with a focal length of 19 mm focuses the laser beam
The ability to machine very small features in a material has a wide range of applications in industry. We ablated holes into thin ΓΏlm of 100 nm thickness made from various metals by femtosecond pulsed laser ablation. Using a Ti:Sapphire laser which supplies a laser pulse of 150 fs duration at centra