摘要
空间外差光谱技术是一种新型的可实现超分辨的光谱技术,它综合光栅和FTS技术于一体。对空间外差光谱技术与传统的傅里叶变换光谱技术(FTS)进行比较研究,介绍了两种光谱技术的光学原理,围绕着仪器的光谱分辨率和光谱范围进行比较分析,给出了一组系统设计参数的比较例子。分析结果表明,空间外差光谱技术可以充分利用探测器的空间频率,在一窄带光谱范围内,获得超高的光谱分辨率。
Spatial heterodyne spectroscopy（SHS） is a new spectroscopic technique which can achieve high spectral resolution. It combines the advantages of grating and Fourier-transform spectroscopy （FTS） techniques. The techniques on spatial heterodyne spectroscipy and FTS are compared. The fundamental principles of SHS and FTS are introduced. Their spectral resolution and spectral range are analyzed and compared. The examples of system parameters design of SHS and FTS are presented. The results show that SHS has some advantages than FTS, it can fully utilizing spatial frequency of array detector （image detector）, and achieves high spectral resolution in a narrow spectral band.
出处
《光学技术》
CAS
CSCD
北大核心
2009年第1期102-104,108,共4页
Optical Technique
关键词
光谱技术
空间外差
傅里叶变换
光谱分辨率
光谱范围
spectroscopy
spatial heterodyne
Fourier transform
spectral resolution
spectral range
