Ablation depth enhancement on a copper surface using a dual-color double-pulse femtosecond laser.
Opt Express
; 31(19): 30285-30293, 2023 Sep 11.
Article
em En
| MEDLINE
| ID: mdl-37710573
We investigate the femtosecond laser ablation of copper with a dual-color double-pulse femtosecond laser at the wavelengths of 515â
nm and 1030â
nm. By properly choosing the energy of the 515â
nm pulse, the optical properties such as surface reflectivity and absorption coefficient on copper surface can be modified to increase the absorption of the subsequent 1030â
nm pulse. The ablation depth of dual-color double-pulse laser is at least 50% higher than the total ablation depth of both the 515â
nm and 1030â
nm pulses, provided that the inter-pulse delay of the double-pulse laser is within the electron-phonon coupling time. The ablation depth enhancement on a copper surface using a dual-color double-pulse femtosecond laser is of significant interest for scientific research and industrial application.
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Coleções:
01-internacional
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MEDLINE
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article