摘要
为了满足移动式量子级联激光器太赫兹(QCL-THz)全息成像仪大视场高空间分辨率的技术需求,设计了预放大同轴数字全息光路结构,显微物镜数值孔径为0.707或0.8,放大倍数为6倍,最佳工作距离为15mm。采用波长为96.8μm的QCL光源,该光路结构能实现10mm的视场,优于100μm的空间分辨率。
The light path of digital holographic microscope in line is designed to meet the requirements of high spatial resolution and big field of view which are the key parameters of the movable quantum cascade laser-terahertz （QCL-THz） digital holography imager.The numerical aperture of the microscope objective is 0.707 or 0.8,the amplification times is 6 and the optimal working distance is 15 mm.It can be achieved that the field of view is 10 mm and the spatial resolution is 100 micron in this light path using terahertz source whose wavelength is 96.8 microns.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2014年第1期190-194,共5页
High Power Laser and Particle Beams
基金
国家科技部重大科学仪器设备开发专项
关键词
量子级联激光器
太赫兹
数字全息
光路结构
quantum cascade laser
THz
digital holography
light path structure
作者简介
黎维华（1974-）,男,副研,主要从事太赫兹波技术研究;auhiewil@sina.com.
