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Applied Optics

Applied Optics


  • Vol. 40, Iss. 9 — Mar. 20, 2001
  • pp: 1396–1403

Study of the mechanical properties of Nd:YVO4 crystal by use of laser interferometry and finite-element analysis

Xiaoyuan Peng, Anand Asundi, Yihong Chen, and Zhengjun Xiong  »View Author Affiliations

Applied Optics, Vol. 40, Issue 9, pp. 1396-1403 (2001)

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A hybrid method that combines experimental and numerical approaches for determining the material properties of Nd:YVO4 is reported. In the experimental investigations a laser interferometer is proposed for measuring the physical deformation of lasing materials at the end-pump surface. By matching with the measured end bulging, we have implemented a numerical solution with finite-element analyses to determine the Poisson ratio and Young’s modulus of the crystal. The accuracy interval of the evaluated Poisson ratio of 0.33 and Young’s modulus of 133 GPa is discussed numerically. Based on the mechanical properties obtained, the end effect is separated from thermal effects, and it shows that the end effect results in an approximate equal thermal lensing effect compared with the index parts for end-pumped Nd:YVO4 lasers.

© 2001 Optical Society of America

OCIS Codes
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(140.3480) Lasers and laser optics : Lasers, diode-pumped
(140.6810) Lasers and laser optics : Thermal effects
(160.3380) Materials : Laser materials

Original Manuscript: May 24, 2000
Revised Manuscript: October 23, 2000
Published: March 20, 2001

Xiaoyuan Peng, Anand Asundi, Yihong Chen, and Zhengjun Xiong, "Study of the mechanical properties of Nd:YVO4 crystal by use of laser interferometry and finite-element analysis," Appl. Opt. 40, 1396-1403 (2001)

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