Technique for Spectropolarimetry Based on Liquid Crystal Polarization Diffraction Grating

被引：3
|
作者：
Hakobyan, Nune [1 ]
Margaryan, Hakob [1 ]
Hovhannisyan, David [1 ]
Sargsyan, Tigran [1 ]
Gasparyan, Petros [1 ]
Aroutiounian, Vladimir [1 ]
Chilingaryan, Hakob [1 ]
Pokhsraryan, David [1 ]
Tabiryan, Nelson [2 ]
机构：
[1] Yerevan State Univ, Yerevan 0025, Armenia
[2] Beam Engn Adv Measurements Co, Winter Pk, FL USA
来源：
MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2015年 / 615卷 / 01期
关键词：
Circular dichroism; polarization diffraction grating; spectroscopy; liquid crystal;
D O I：
10.1080/15421406.2015.1068469
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Technique for real-time spectropolarimetry is developed. An embedded system for circular dichroism registration is designed based on National Instruments single board reconfigurable I/O platform for ultraviolet and visible spectroscopic needs. The basic functional unit of the proposed device is liquid crystal polarization diffraction grating. In order to expand the dynamic range the control of data accumulation time is provided. Two NMOS sensor linear arrays provide an excellent linearity of response.
引用
收藏
页码：63 / 69
页数：7
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