Quasi-4D laser diagnostics using an acousto-optic deflector scanning system

被引：0
作者：
Tao Li
Jhon Pareja
Lukas Becker
Wolfgang Heddrich
Andreas Dreizler
Benjamin Böhm
机构：
[1] Technische Universität Darmstadt,Reaktive Strömungen und Messtechnik
[2] Technische Universität Darmstadt,Darmstadt Graduate School of Excellence Energy Science and Engineering
[3] Hochschule Darmstadt,Fachbereich Mathematik und Naturwissenschaften
[4] Technische Universität Darmstadt,Energie
来源：
Applied Physics B | 2017年 / 123卷
关键词：
Particle Image Velocimetry; Laser Sheet; Diffraction Efficiency; Separation Angle; Acoustic Frequency;
D O I：
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中图分类号：
学科分类号：
摘要：
In this paper, a novel scanning system for laser diagnostics was developed and characterized. The system is based on the acousto-optic deflection of a high-speed pulsed laser. Results showed that quasi-volumetric laser illumination with high precision and accuracy can be achieved with a simplified and flexible optical setup. The feasibility of the method for performing high-speed quasi-4D laser diagnostics was demonstrated by the tomographic visualization of a lifted turbulent jet flame using Mie-scattering and multi-plane particle image velocimetry measurements of a turbulent non-reactive mixing case. Three-dimensional flame and flow structures can be detected and tracked with this new scanning system.
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