2004•Piezoelectrics and AcoustoopticsRequires access

AOTF-based Infrared Spectra Measuring System and Design Analysis

Zhao Yu-chun

Abstract

The novel infrared spectra measuring system using AOTF(Acousto-Optic Tunable Filter) as dispersive element is presented. Using DDS(Direct Digital Synthesizer)technique under control of single-chip computer, electronic-tunable wavelength scanning is realized. Signal-noise ratio of the system is improved with double beam mode and correlative detection technology. In this paper, some design problems about the AOTF-based infrared spectra measuring system are analyzed

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Available abstract

Key concepts: Infrared, Materials science, Optics, Infrared spectroscopy, Noise (video), SIGNAL (programming language), Spectral line, Filter (signal processing)