Gelator-doped liquid-crystal phase grating with multistable and dynamic modes

Journal Article · Mon Jan 06 00:00:00 EST 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4861155· OSTI ID:22257133

Lin, Hui-Chi; Yang, Meng-Ru; Tsai, Sheng-Feng; Yan, Shih-Chiang ^[1]

---

1. Department of Electro-Optical Engineering, National Formosa University, Yunlin 632, Taiwan (China)

We demonstrate a gelator-doped nematic liquid-crystal (LC) phase grating, which can be operated in both the multistable mode and the dynamic mode. Thermoreversible association and dissociation of the gelator molecules can vary and fix the multistable diffraction efficiencies of the gratings. A voltage (V) can also be applied to modulate dynamically the diffraction efficiencies of the grating, which behaves as a conventional LC grating. Experimental results show that the variations of the diffraction efficiencies in the multistable and dynamic modes are similar. The maximum diffraction efficiency is approximately 30% at V = 2 V.

• OSTI ID: 22257133
• Journal Information: Applied Physics Letters, Vol. 104, Issue 1; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
DIFFRACTION
DOPED MATERIALS
EFFICIENCY
GRATINGS
LIQUID CRYSTALS