| 可见光液晶光谱成像系统研究 |
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| 作者姓名： | Shen ZX Li JF Zhang DY Wu J Long Y Huang LX Liu HT Luo YQ Luo F Zhang CJ Yang JJ |
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| 作者单位： | 1. 中国工程物理研究院流体物理研究所,四川绵阳,621900
2. 西南医院烧伤研究所,重庆,400038 |
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| 基金项目： | 国家自然科学基金项目(81027004)资助 |
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| 摘 要： | 利用向列相液晶材料的电控双折射效应,研制了用于可见光波段光谱调谐的大口径液晶可调滤光片,透过光谱测试表明,该滤光片在可见光波段(420~700 nm)以20 nm光谱分辨率可实现连续调谐和任意波长选择。利用该滤光片搭建了一种小型光谱成像系统,并在实验室内对若干样品进行了测试,结果表明,该系统可同时实现高图像分辨率和高光谱分辨率光谱成像,具备高、超光谱分辨率光谱成像的应用潜力,在生物医学、环境保护和资源探测等领域具有较好的应用前景。
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| 关 键 词： | 液晶可调滤光片 电控双折射 工作谱段 光谱分辨率 光谱成像系统 |
Research on LC-based spectral imaging system for visible band |
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| Shen ZX,Li JF,Zhang DY,Wu J,Long Y,Huang LX,Liu HT,Luo YQ,Luo F,Zhang CJ,Yang JJ.Research on LC-based spectral imaging system for visible band[J].Spectroscopy and Spectral Analysis,2011,31(10):2672-2675. |
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| Authors: | Shen Zhi-Xue Li Jian-Feng Zhang Da-Yong Wu Jun Long Yan Huang Li-Xian Liu Hai-Tao Luo Yong-Quan Luo Fei Zhang Cui-Juan Yang Jun-Jie |
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| Institution: | SHEN Zhi-xue1,LI Jian-feng1,ZHANG Da-yong1,WU Jun2,LONG Yan1,HUANG Li-xian1,LIU Hai-tao1,LUO Yong-quan1,LUO Fei1,ZHANG Cui-juan1,YANG Jun-jie21.Institute of Fluid Physics,China Academy of Engineering Physics,Mianyang 621900,China2.Institute of Burn Research of Southwest Hospital,Chongqing 400038,China |
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| Abstract: | LC-based tunable filter with large aperture has been developed utilizing the effect of electric controlled birefringence.Spectral test indicated that this filter can operate in the visible band with an average 20 nm FWHM.A small scale spectral imaging system was established based on this tunable filter.Spectral imaging experiments on a certain number of samples show that this system can be tuned continuously with random-access selection of any wavelength,and has a higher level of resolving power in respect ... |
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| Keywords: | LC-based tunable filter Electric controlled birefringence Operating spectral coverage Spectral resolution Spectral imaging system |
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