Laser self-induced thermo-optical effects in a magnetic fluid | Zendy

Shengli Pu | Zendy; Xianfeng Chen | Zendy; Weijun Liao | Zendy; Lijun Chen | Zendy; Yuping Chen | Zendy; Yuxing Xia | Zendy

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Laser self-induced thermo-optical effects in a magnetic fluid

Author(s) -

Shengli Pu,

Xianfeng Chen,

Weijun Liao,

Lijun Chen,

Yuping Chen,

Yuxing Xia

Publication year - 2004

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.1808242

Subject(s) - divergence (linguistics) , optics , laser , beam divergence , self focusing , interference (communication) , convection , materials science , beam (structure) , work (physics) , optical power , physics , laser power scaling , laser beams , mechanics , beam diameter , thermodynamics , philosophy , linguistics , channel (broadcasting) , electrical engineering , engineering

The laser self-induced thermo-optical effects in a magnetic fluid are studied in this work. We study the origin of these effects theoretically, and then experiments are done to investigate the relationship between the divergence angle of the laser beam and the incident power. From the experimental results, we find out that the divergence angle increases linearly with the incident power to some critical power, which is in good agreement with the theory. To the high incident power side, the divergence angle will deviate from the linear relationship and the spherical aberration interference rings will be blurred due to the occurrence of the convective currents. © 2004 American Institute of Physics.

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