基于AOTF的新型成像光谱系统  

New hyperspectral imaging system based on AOTF

作　　者：刘济帆[1] 马艳华[1] 张雷[1] 舒嵘[1] 

机构地区：[1]中国科学院上海技术物理研究所空间主动光电技术重点实验室,上海200083

出　　处：《红外与激光工程》2013年第11期3065-3069,共5页Infrared and Laser Engineering

基　　金：国家973计划(2009CB723902)

摘　　要：声光可调谐滤波器(Acousto-optic Tunable Filter,AOTF)是一种新型电控滤光元件,具有波长任意选择、光谱扫描速度快、体积小、无运动部件、环境适应性好等诸多优点。分析了AOTF的工作原理及多频模式下实现光谱分辨率可编程的方法,介绍了基于AOTF的新型成像光谱系统,给出了初步的实验结果。该系统工作于可见近红外波段,突出特点为光谱扫描波段、各波段光谱分辨率均可通过软件进行配置,因此相比于传统成像光谱系统具有更高的灵活性和数据效率。AOTF （Acousto-optic Tunable Filter） is a new kind of electronically controlled optical filter. It has many advantages such as random wavelength access, fast spectral scanning speed, small size, no moving parts, good environmental adaptability, and so on. The working principles of AOTF and the method for spectral resolution programmability based on multi-frequencies mode were analyzed, the new hyperspectral imager based on AOTF was proposed, and the original experimental results were presented. The system works in the visible-near-infrared spectral range, and the outstanding feature is that both the wavelengths and the spectral resolution can be configured via software. So it has better flexibility and higher data efficiency compared to traditional hyperspectral imagers.

关 键 词：AOTF 声光效应 成像光谱系统 光谱分辨率 

分 类 号：TP79[自动化与计算机技术—检测技术与自动化装置]