title: Fabrication of concave microlens arrays by local fictive temperature modification of fused silica.
abstract: A simple and convenient means of fabricating concave microlens arrays direct on silica glass by using the local fictive temperature modification of fused silica is presented. This method is based on the fact that an increased fictive temperature results in a much higher HF acid etching rate of fused silica. Combining the abrupt local fictive temperature enhancement by the CO2laser pulse and the subsequent etching by the HF acid solution, concave microlens arrays with high fill factors, excellent smoothness, and optical performance are generated on fused silica.
authors.forename: Chuanchao
authors.initials: C
authors.lastname: Zhang
authors.forename: Wei
authors.initials: W
authors.lastname: Liao
authors.forename: Ke
authors.initials: K
authors.lastname: Yang
authors.forename: Taixiang
authors.initials: T
authors.lastname: Liu
authors.forename: Yang
authors.initials: Y
authors.lastname: Bai
authors.forename: Lijuan
authors.initials: L
authors.lastname: Zhang
authors.forename: Xiaolong
authors.initials: X
authors.lastname: Jiang
authors.forename: Jing
authors.initials: J
authors.lastname: Chen
authors.forename: Yilan
authors.initials: Y
authors.lastname: Jiang
authors.forename: Haijun
authors.initials: H
authors.lastname: Wang
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Luan
authors.forename: Hai
authors.initials: H
authors.lastname: Zhou
authors.forename: Xiaodong
authors.initials: X
authors.lastname: Yuan
authors.forename: Wanguo
authors.initials: W
authors.lastname: Zheng