| 双波长全息术实验研究及在自适应光学中的应用 |
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| 引用本文： | 杨强. 双波长全息术实验研究及在自适应光学中的应用[J]. 光学技术, 2009, 35(3) |
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| 作者姓名： | 杨强 |
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| 作者单位： | 北京理工大学,光电学院,北京,100081 |
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| 摘 要： | 在双波长全息术中,全息图可用一个波长记录,用另一个波长重现。用光学寻址液晶空间光调制器作为记录介质,可方便实现动态双波长全息图的记录。经一个畸变波前记录动态全息图后,由具有相同畸变的另一个波前去重现该动态全息图,可以实现对光学波前畸变的等比例缩小。在用于自适应光学的负性反馈回路中时,可简化大波前畸变的测量过程,可在中红外光谱范围内记录并制作动态全息图畸变校正器(在此波段直接的全息记录是极难的),也能增大可校正的畸变范围。介绍了这种动态干涉仪的实验实现,及该动态全息记录技术应用于自适应光学的前景。
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| 关 键 词： | 全息术 双波长 液晶空间光调制器 畸变 自适应光学 |
Experimental research of two-wavelength holography and its application in adaptive optics |
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| YANG Qiang. Experimental research of two-wavelength holography and its application in adaptive optics[J]. Optical Technique, 2009, 35(3) |
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| Authors: | YANG Qiang |
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| Affiliation: | School of Optoelectronic Engineering;Beijing Institute of Technology;Beijing 100081;China |
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| Abstract: | In two-wavelength holography,the hologram is recorded at one wavelength and reconstructed at another shifted wavelength.Optically addressed liquid crystal spatial light modulators are very suited for recording thin dynamic twowavelength hologram as recording medium.When another wavefront with the same distortion reconstruct the recorded dynamic hologram,a certain scaling of the wavefront distortions would be obtained.As a holographic interferometer it can be used in a negative optical correction feedback lo... |
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| Keywords: | holography two-wavelength liquid crystal spatial light modulator distortion adaptive optics |
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