Chinese Optics Letters, 2020, 18 (10): 101402, Published Online: Sep. 3, 2020
Fabrication of diamond ultra-fine structures by femtosecond laser Download: 654次
Abstract
A 400 nm femtosecond laser was used to ablate the surface of a high-pressure and high-temperature diamond, and subwavelength surface micro structures with a period of 100 nm were achieved. A variety of micro-nano composite surface structures were prepared by changing the polarization direction and laser scanning direction. By dynamically adjusting the laser polarization and the laser scanning tracks, a maskless direct writing fabrication of micro-nano complex structures was realized. The micro-nano patterning on an ultra-hard and super-stabile diamond provides a new idea for the preparation of friction reducing surfaces, nano imprint transfer templates, surface enhanced Raman scattering test substrates, and micro-nano optical structures.
Tong Jiang, Si Gao, Zhennan Tian, Hanzhuang Zhang, Ligang Niu. Fabrication of diamond ultra-fine structures by femtosecond laser[J]. Chinese Optics Letters, 2020, 18(10): 101402.