Chinese Optics Letters, 2005, 3 (0s): 200, Published Online: Mar. 5, 2007
Femtosecond laser microfabrication of micro-optic elements in glass Download: 554次
320.2250 Femtosecond phenomena 220.4000 Microstructure fabrication 140.3390 Laser materials processing
Abstract
Micro-optic elements have been fabricated in silica and soda-lime glass with femtosecond laser pulses. The dependence of refractive index change on pulse duration, pulse energy and scan passes is investigated and a Fresnel zone plate is induced. A permanent computer-generated hologram encoded by the detour phase method is directly written by microexplosion. The stored image is reconstructed with a collimated He-Ne laser beam. Three-dimensional microchannels are drilled by water-assisted ablation. At low incident pulse energy, only one transverse microhole is observed. At high incident pulse energy, multiple transverse microholes are simultaneously drilled.
Yan Li, Hongbing Jiang, Hong Yang, Qihuang Gong. Femtosecond laser microfabrication of micro-optic elements in glass[J]. Chinese Optics Letters, 2005, 3(0s): 200.