S. H. YuC. C. ChangJ. H. GuJ. C. Tsai*JUI-CHE TSAI2019-10-312019-10-31201721605033https://scholars.lib.ntu.edu.tw/handle/123456789/429901Solid non-mechanical discretely-tunable hard-aperture diaphragmconference paper10.1109/omn.2017.80514732-s2.0-85035034310