Jacobs University Bremen, School of Science and Engineering, Electronic Devices and Nanophotonics Laboratory, 28759 Bremen, Germany.
Opt Lett. 2011 Jan 15;36(2):274-6. doi: 10.1364/OL.36.000274.
We realized a transparent Fourier transform spectrometer and investigated its operating principle. The spectrometer consists of a low-reflectivity Fabry-Perot interferometer and a partially transparent photodetector, which allows for the operation of the spectrometer in transmission. By changing the distance between the low-reflectivity mirrors of the Fabry-Perot interferometer, the light intensity that reaches the partially transparent photodetector is modulated and the spectral information of the incident light is determined by the Fourier transform of the generated photocurrent. This transparent Fourier transform spectrometer allows easy miniaturization and integration into any kind of optical system.
我们实现了一种透明傅里叶变换光谱仪，并研究了其工作原理。该光谱仪由一个低反射率的法布里-珀罗干涉仪和一个部分透光的光电探测器组成，允许光谱仪在透射模式下工作。通过改变法布里-珀罗干涉仪的低反射率镜之间的距离，到达部分透光光电探测器的光强度被调制，并且入射光的光谱信息由产生的光电流的傅里叶变换确定。这种透明傅里叶变换光谱仪允许轻松地小型化和集成到任何类型的光学系统中。
