Jovanov Vladislav, Ivanchev Jordan, Knipp Dietmar
Jacobs University Bremen, Electronic Devices and Nanophotonics Laboratory, School of Science and Engineering, Bremen, Germany.
Opt Express. 2010 Jan 18;18(2):426-38. doi: 10.1364/OE.18.000426.
A standing wave Fourier transform spectrometer is realized. The spectrometer consists of an ultra thin and partially transparent photodetector and a tunable mirror. The incident light forms a standing wave in front of the mirror, which is sampled by the ultra thin optical detector. The thickness of the photodetector is significantly smaller than the wavelength of the incident light. The spectral information of the incident light is determined by the Fourier transform of the detector signal. The linear arrangement of the optical detector and the mirror enables the realization of spectrometer arrays and optical cameras with high spectral resolution. For the first time a complete optical model of the standing wave spectrometer is presented and compared with experimental results. The influence of the design of the optical detector on the performance of the spectrometer is discussed.
实现了一种驻波傅里叶变换光谱仪。该光谱仪由一个超薄且部分透明的光电探测器和一个可调谐镜组成。入射光在镜子前形成驻波，由超薄光学探测器进行采样。光电探测器的厚度明显小于入射光的波长。入射光的光谱信息由探测器信号的傅里叶变换确定。光学探测器和镜子的线性排列使得能够实现具有高光谱分辨率的光谱仪阵列和光学相机。首次提出了驻波光谱仪的完整光学模型并与实验结果进行了比较。讨论了光学探测器设计对光谱仪性能的影响。
