Momtahan Omid, Hsieh Chao Ray, Adibi Ali, Brady David J
School of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta 30332-0250, USA.
Appl Opt. 2006 May 1;45(13):2955-64. doi: 10.1364/ao.45.002955.
The analysis of a slitless volume holographic spectrometer is presented in detail. The spectrometer is based on a spherical beam volume hologram followed by a Fourier-transforming lens and a CCD. It is shown that the spectrometer is not sensitive to the incident angle of the input beam for the practical range of applications. A holographic spectrometer based on the conventional implementation is also analyzed, and the results are used to compare the performance of the proposed method with the conventional one. The experimental results are consistent with the theoretical study. It is also shown that the slitless volume holographic spectrometer lumps three elements (the entrance slit, the collimator, and the diffractive element) of the conventional spectrometer into one spherical beam volume hologram. Based on the unique features of the slitless volume holographic spectrometer, we believe it is a good candidate for portable spectroscopy for environmental and biological applications.
详细介绍了一种无狭缝体全息光谱仪的分析方法。该光谱仪基于一个球面光束体全息图，后面跟着一个傅里叶变换透镜和一个电荷耦合器件（CCD）。结果表明，在实际应用范围内，该光谱仪对输入光束的入射角不敏感。还分析了基于传统实现方式的全息光谱仪，并将结果用于比较所提出方法与传统方法的性能。实验结果与理论研究一致。还表明，无狭缝体全息光谱仪将传统光谱仪的三个元件（入射狭缝、准直器和衍射元件）集成到一个球面光束体全息图中。基于无狭缝体全息光谱仪的独特特性，我们认为它是用于环境和生物应用的便携式光谱学的良好候选者。
