Study of Lasing in Liquid-Crystal Systems with Microgratings

N. M. Shtykov; S. P. Palto; B. A. Umanskii; A. R. Geivandov

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Study of Lasing in Liquid-Crystal Systems with Microgratings

机译：用微观花纹在液晶系统中激光研究

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Waveguide lasing in a layer of nematic liquid crystal (NLC) doped with a dye has been experimentally observed. A chromium micrograting with a period of 1.76 μm has been deposited on the surface one of the cell substrates to provide a distributed feedback (DFB) and partially extract laser radiation to a quartz substrate. The DFB provides lasing in the ninth diffraction order for waveguide TM modes. Laser radiation is observed at the output of the substrate end face at an angle of 67.0° ± 1.5° with respect to the normal to the waveguide plane. An increase in voltage across the micrograting electrodes leads to red-shifted multimode lasing. A numerical simulation of a structure imitating the experimental cell has shown good agreement between the calculation results and experimental data.

机译：已经通过实验观察到掺杂有染料的向列液晶（NLC）层中的波导激光。在细胞基板的表面上沉积了一段1.76μm的铬微晶片，以提供分布式反馈（DFB）并将激光辐射部分提取到石英底物。 DFB在波导TM模式的第九衍射顺序中提供激光。在基板端面的输出处以67.0°±1.5°的角度相对于波导平面的角度观察激光辐射。微量电极上的电压的增加导致红色移位的多模激光。模拟实验细胞的结构的数值模拟在计算结果和实验数据之间表现出良好的一致性。

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《Crystallography reports》 |2018年第4期|共8页
作者
N. M. Shtykov; S. P. Palto; B. A. Umanskii; A. R. Geivandov;
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作者单位

Shubnikov Institute of Crystallography Federal Scientific Research Centre “Crystallography and Photonics ” Russian Academy of Sciences;

Shubnikov Institute of Crystallography Federal Scientific Research Centre “Crystallography and Photonics ” Russian Academy of Sciences;

Shubnikov Institute of Crystallography Federal Scientific Research Centre “Crystallography and Photonics ” Russian Academy of Sciences;

Shubnikov Institute of Crystallography Federal Scientific Research Centre “Crystallography and Photonics ” Russian Academy of Sciences;

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正文语种 eng
中图分类晶体学;
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1. Study of Lasing in Liquid-Crystal Systems with Microgratings [J] . N. M. Shtykov, S. P. Palto, B. A. Umanskii, Crystallography reports . 2018,第4期

机译：用微观花纹在液晶系统中激光研究
2. Analysis of Cavity-Mode Lasing Characteristics from a Resonator with Broadband Cholesteric Liquid-Crystal Bragg Reflectors [J] . Hyunhee Choi, Suzushi Nishimura, Takehiro Toyooka, Advanced Functional Materials . 2011,第18期

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4. Studies on liquid-crystal/polymer composite of acrylate matrix system (III): electro-optic properties of UV-curable liquid-crystal/PMMA composite film [C] . Wen C. Chiang, National Tsing Hua Univ., Hsinchu, Conference on display technologies . 1992

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5. Numerical studies of lasing and electromagnetic fluctuations in open complex systems. [D] . Andreasen, Jonathan. 2009

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7. Proposal for a study of laser acceleration of electrons using micrograting structures at ATF (Phase 1) [O] . W. Chen, J. Claus, R.C. Fernow, 1989

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Study of Lasing in Liquid-Crystal Systems with Microgratings

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