Geometric phase device writing on a nematic LC cell by using polarization holography

Chau Nguyen Hong Minh*, Stefan Petrov, Vera Marinova, Shiuan Huei Lin*

*此作品的通信作者

研究成果: Conference contribution同行評審

摘要

In this paper, we propose to fabricate the Geometric Phase (GP) optical device in an nematic liquid crystal cell (NLC cell) by using photo-alignment technique with poly[1- [4-(3-carboxy-4-hydroxyphenylazo)benzenesulfonamido]-1,2-ethanediyl, sodium salt] azo-polymer (PAZO) as alignment layer. During fabrication, the necessary surface alignment pattern of GP modulations for the device is firstly created and written on the PAZO films of an empty cell by using polarization holographic method. With filling E7 LC molecule, GP grating and lens are formed. The design principle, fabrication and characterization of both GP diffractive grating and lens are presented. The results show that the device can appear as a polarization-selective transmission hologram with single diffractive order, although the thickness of cell is 5 μm. In addition, the polarization state and wavefront of diffracted wave can be converted simultaneously. Thus, the device can be named as the diffractive waveplate, which provides many unique photonic applications, becoming effective way for minimizing and integrating optical devices for a photonic modular.

原文English
主出版物標題Photonic Fiber and Crystal Devices
主出版物子標題Advances in Materials and Innovations in Device Applications XVII
編輯Shizhuo Yin, Ruyan Guo
發行者SPIE
ISBN(電子)9781510665781
DOIs
出版狀態Published - 2023
事件Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVII 2023 - San Diego, United States
持續時間: 20 8月 2023 → …

出版系列

名字Proceedings of SPIE - The International Society for Optical Engineering
12682
ISSN(列印)0277-786X
ISSN(電子)1996-756X

Conference

ConferencePhotonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XVII 2023
國家/地區United States
城市San Diego
期間20/08/23 → …

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