光学学报, 2001, 21 (12): 1489, 网络出版: 2006-08-10
中远红外傅里叶变换发光测量中双调制技术的实现与优化
Realization and Improvement of Double Modulation Methods for Fourier Transform Luminescence Measurements in Middle and Far Infrared Band
摘要
对常规傅里叶变换发光测量方法进行改进,引入双调制技术,在迈克耳孙干涉仪一级调制的基础上,引入更高频率调制锁相测量手段.通过这一测量方法的引入,并通过对调制频率和带通滤波器等测量参数的优化,基本消除了室温背景的黑体辐射在4μm～5 μm以上区域对光致发光测量带来的严重干扰,在10 μm长波红外波段得到了无室温背景黑体辐射影响的光致发光光谱,从而将光致发光测量推至5 μm以上长波红外波段.
Abstract
The high frequency double modulation and lock in technique was attached to the normal Fourier transform infrared spectrometer to eliminate the huge influences of the room temperature background blackbody emission on the measurement of the infrared photoluminescence spectra. The experimental method was optimized by adjusting the modulation frequency, choosing the suitable band pass filter and phase correction. The photoluminescence spectra in 10 μm long wave infrared band without the influences of the background blackbody emission were obtained.
常勇, 唐文国, 程才凤, 王晓光, 褚君浩, 汤定元. 中远红外傅里叶变换发光测量中双调制技术的实现与优化[J]. 光学学报, 2001, 21(12): 1489. 常勇, 唐文国, 程才凤, 王晓光, 褚君浩, 汤定元. Realization and Improvement of Double Modulation Methods for Fourier Transform Luminescence Measurements in Middle and Far Infrared Band[J]. Acta Optica Sinica, 2001, 21(12): 1489.
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