Spatial light modulator based on sheared polymer network liquid crystal

Yanling Luo; Jiaobo Gao

doi:10.1117/12.756467

8 January 2008 Spatial light modulator based on sheared polymer network liquid crystal

Yanling Luo, Jiaobo Gao

Proceedings Volume 6835, Infrared Materials, Devices, and Applications; 68350C (2008) https://doi.org/10.1117/12.756467
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

A kind of spatial light modulator using sheared polymer network liquid crystal (SPNLC) is presented. The SPNLC shows a fast response and weak thickness dependency. The SPNLC cell is fabricated by exposing the mixture of E7 liquid crystal and monomer NOA65 under ultraviolet light. A sheared force is applied to the cell to align the liquid crystal domains, decreasing response time and reducing light scattering. A SPNLC sample of d=13μm with about 3ms response time was measured at λ=632.8nm. For another sample of d=20μm reflective infrared spatial light modulator using SPNLC, when the black body of readout radiation was 600°C, response time with about 8ms at λ=10.6μm and the maximum difference in temperature with more than 80°C at 8~14μm were measured.

Citation Download Citation

Yanling Luo and Jiaobo Gao "Spatial light modulator based on sheared polymer network liquid crystal", Proc. SPIE 6835, Infrared Materials, Devices, and Applications, 68350C (8 January 2008); https://doi.org/10.1117/12.756467

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