摘要
该文采用氧化碲晶体制作了一种o光入射型声光可调滤光器,并对其分光原理进行了理论分析,推导出超声极角、孔径角和光波长与频率的调谐关系等o光入射型声光可调滤光器常用公式,通过实测与分析验证了其准确性。实验结果表明,该o光入射型声光可调滤光器可以对目标的o光特性进行光谱成像分析,弥补了e光入射型声光可调滤光器不能分析目标o光特性的不足。
In this paper, an o-light incident acousto-optic tunable filter (AOTF) based on TeO2 crystal has been fabricated, and its beam-splitting principle is analysed theoretically. A series of common formulas of o-light incident AOTF, such as ultrasonic pole angle, aperture angle and tuning relationship between light wavelength and frequency, are derived. The accuracy of these formulas is verified by actual measurement and analysis. The experimental results show that the o-light incident AOTF can perform the spectral imaging analysis on the o-light characteristics of the target, which makes up for the insufficiency that the e-light incident AOTF can’t analyze the o-light characteristics of the target.
作者
张泽红
邓江涛
ZHANG Zehong;DENG Jiangtao(The26th Institute of China Electronics Technology Group Corporation, Chongqing 400060, China;Magg Magneto (Zhuhai) Technology Co. LTD, Zhuhai 519040, China)
出处
《压电与声光》
CAS
北大核心
2019年第4期476-480,共5页
Piezoelectrics & Acoustooptics
关键词
声光可调滤光器
光波长
o光
超声极角
孔径角
acousto-optic tunable filter(AOTF)
light wavelength
o-light
ultrasonic pole angle
aperture angle
