Light-driven phase transition of diffractive optical elements based on liquid crystal elastomers

Chen, Lei1,2,3; Liu, Jianxun1,3; Cheng, Ming1,2,3,4,5; Wang, Zhenming1,2,3,6; Cai, Wenfeng1,2,3; Ma, Zongjun1,2,3; Bai, Ziyan1,2,3; Kong, Delai1,2,3; Cen, Mengjia1,2,3; Liu, Yan jun1,2,3

2024-03-25

10.1364/OE.521122

OPTICS EXPRESS   影响因子和分区

1094-4087

Diffractive optical element is advantageous for miniaturization, arraying and integration of optical systems. They have been widely used in beam shaping, diffractive imaging, generating beam arrays, spectral optimization and other aspects. Currently, the vast majority of diffractive optics are not tunable. This limits the applicability and functionality of these devices. Here we report a tunable diffractive optical element controlled by light in the visible band. The diffractive optical element consists of a square gold microarray deposited on a deformable substrate. The substrate is made of a liquid crystal elastomer. When pumped by a 532 nm laser, the substrate is deformed to change the crystal lattice. This changes the far -field diffraction pattern of the device. The proposed concept establishes a light -controlled soft platform with great potential for tunable/reconfigurable photonic devices, such as filters, couplers, holograms and structural color displays.

SCI ; EI

英语

第一 ; 通讯

National Key Research and Development Program of China[2022YFA1203702] ; National Natural Science Foundation of China["62075093","62211530039"] ; Guangdong Province Introduction of Innovative RD Team[2017ZT07C071] ; Science, Technology and Innovation Commission of Shenzhen Municipality[JCYJ20220818100413030] ; Development and Reform Commission of Shenzhen Municipality[XMHT20220114005]

Optics

Optics

WOS:001207071900004

Optica Publishing Group

PHYSICS

Web of Science

1.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, State Key Lab Opt Fiber & Cable Manufacture Techno, Shenzhen 518055, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Engn Res Ctr High Resolut Light Field Dis, Shenzhen 518055, Peoples R China
4.Hong Kong Univ Sci & Technol, State Key Lab Adv Display & Optoelect Technol, Hong Kong 999077, Peoples R China
5.Hong Kong Univ Sci & Technol, Ctr Display Res, Dept Elect & Comp Engn, Hong Kong 999077, Peoples R China
6.Univ Leeds, Sch Phys & Astron, Leeds LS2 9JT, England

Chen, Lei,Liu, Jianxun,Cheng, Ming,et al. Light-driven phase transition of diffractive optical elements based on liquid crystal elastomers[J]. OPTICS EXPRESS,2024,32(7).

Chen, Lei.,Liu, Jianxun.,Cheng, Ming.,Wang, Zhenming.,Cai, Wenfeng.,...&Liu, Yan jun.(2024).Light-driven phase transition of diffractive optical elements based on liquid crystal elastomers.OPTICS EXPRESS,32(7).

Chen, Lei,et al."Light-driven phase transition of diffractive optical elements based on liquid crystal elastomers".OPTICS EXPRESS 32.7(2024).