Fan Bu
ABSTRACT
AOTF (acousto-optic tunable filter)-based polarization spectroscopy imaging technology is an emerging cross-technical field. Exploring the application of this technology in military and civilian fields has become an important research topic at home and abroad. Compared with traditional instruments, AOTF polarization spectrometers have unique advantages in terms of working mechanism and instrument design. According to the working principle of AOTF and the working process of AOTF polarization spectrometer, an image acquisition and display technical scheme of polarizing spectrum imager based on the combination of AOTF and CCD camera is designed. In this paper, the host computer coded in VC++ is proposed to set some key parameters of CCD97-00 (EMCCD product of E2V Company) through USB2.0, such as exposure time, exposure interval, exposure gain and offset. Moreover, this system has single-frequency and continuous-sweep working modes under the control of the AOTF. After testing, the function of the system was verified. The results show that the system can efficiently and reliably collect polarized spectral image data and control corresponding instruments. It has certain research significance and practical value, and is providing large amount of image data for a follow-up study of polarized spectral images.
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Index Terms
- Image acquisition and display system of AOTF polarization spectrometer
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