Influence of airflow heating on aero-optic effects

Zhang Li; Tao Yanhui; Wang Guibing; Liu Guodong; Wang Chunyan; Kuang Xuewu; Li Jianming; Liu Haitao; Gui Yuanzhen

doi:10.3788/HPLPB20132502.0297

Volume 25 Issue 02

Dec. 2012

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(02): 297-300

He Minbo, Jiang Houman. Scaling law in thermal deformation of high reflecting mirror under laser irradiation[J]. High Power Laser and Particle Beams, 2012, 24: 2043-2046. doi: 10.3788/HPLPB20122409.2043

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Zhang Li, Tao Yanhui, Wang Guibing, et al. Influence of airflow heating on aero-optic effects[J]. High Power Laser and Particle Beams, 2013, 25: 297-300. doi: 10.3788/HPLPB20132502.0297

Citation:

Zhang Li, Tao Yanhui, Wang Guibing, et al. Influence of airflow heating on aero-optic effects[J]. High Power Laser and Particle Beams, 2013, 25: 297-300. doi: 10.3788/HPLPB20132502.0297

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Influence of airflow heating on aero-optic effects

doi: 10.3788/HPLPB20132502.0297

1.
Institute of Fluid Physics,CAEP,P.O.Box 919-113,Mianyang 621900,China

Received Date: 2012-05-29
Rev Recd Date: 2012-09-03
Publish Date: 2013-02-10

Abstract

Abstract

Based on the discussion of the law of the interaction between optic field and fluid field, we adopted the physical model for high energy laser beams crossing through three-dimensional high speed flow. A two-dimensional Hartmann wavefront sensor was used to measure the aero-optic effects when the high energy laser beam passed through a high speed airflow in the wind tunnel. The density and temperature maps of fluid field and far-field optical path difference map of laser beams were obtained. The disturbance of the fluid field caused by radiation heating and the changing of laser beam optics aberrations after the beam passing through the fluid field were discussed. The results show that the interaction between lasers and the high speed airflow has little influence on the temperature and density of the airflow when the air is not ionized.
- aero-optics,
- high power laser beam,
- optical path difference,
- Hartmann wavefront sensor,
- wind tunnel

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