Quartz Microlens Array

NA hits theoretical limit

Aberration-based self-modulating femtosecond laser processing overcomes the aspect-ratio limitation of conventional methods, delivering microlens arrays with tunable NA up to the theoretical limit.

Xinran, Yuan · Jingyang, Deng · Dihua, Xu · Sun, Xiangchao · Yu, Yanhao · Chen, Qidai

Guangxue Xuebao/Acta Optica Sinica 2023

Specifications

单脉冲能量

{'zh': '309', 'en': ''} nJ

离焦位置

{'zh': '11', 'en': ''} μm

Tunable NA range

{'zh': '', 'en': '-0.45'} across

Advantages

Large-area microlens array with NA=0.44