Development of Pulse synchronized continuous scanning high resolution Fourier transform spectrometer

本文研制的脉冲同步连续扫描高分辨率傅里叶变换光谱仪由连续扫描傅里叶变换和脉冲发生器组成，脉冲发生器产生脉冲激光的外触发脉冲。光谱仪的典型参数是干涉仪迈克尔逊型测量区域可见，（紫外，近红外）最大分辨率0.02 cm^<-1>固定/移动镜角回复反射器分束板半反射镜和补偿板与AR涂层镜驱动机构光学X轴状态和直流电机氦氖激光单模，最大扫描速度3.6mm/s探测器光电倍增管氦氖激光探测器硅二极管A/D转换器20 MHz 12 Bit 4CH计算机IBM兼容× 2 OS Linux通过光谱仪以0.06cm-2的FWHM测量2<-1>。还测量了多模二极管激光器的发射光谱，并确认了0.02cm-3的最大分辨率<-1>。研制了脉冲激光器脉冲发生器，产生了重复频率为10 Hz的脉冲光源测量所需的输出脉冲。

Pulse synchronized continuous scanning high resolution Fourier transform spectrometer developed in this research consits of continuous scanning Fourier transform and pulse generator which generates external trigger pulses for pulsed laser. Typical parameters for spectrometer areInterferometer Michelson typeMeaurement region visible,(UV, near IR)Maximum resolution 0.02 cm^<-1>Fixed/Moving mirrors corner retro-reflectorBeam splitter plate half mirror and compansate plate with AR coatingDriving mechanism for mirror Optical X-axis state and DC motorHe-Ne laser single mode, and stabilized oscilating wavelengthMaximum scan verocity 3.6 mm/sDetector PhotomultiplierHe-Ne laser detector Si diodeA/D convertor 20MHz 12Bit 4CHComputer IBM compatible ×2OS LinuxAn absorption spectrum of I_2 was measured by the spectrometer with FWHM of 0.06 cm^<-1>. Also the emission spectrum of multi-mode diode laser was measured and maximum resolution of 0.02 cm^<-1> was confirmed. Pulse generator for pulsed laser was made and output pulses which is required for the measurement of pulsed light source with 10 Hz repetition rate were generated.