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Optical Materials Express

Optical Materials Express

  • Editor: David J. Hagan
  • Vol. 2, Iss. 6 — Jun. 1, 2012
  • pp: 735–739

Non-critical phase-matching conditions for fourth harmonic generation of DKDP crystal

Shaohua Ji, Shaojun Zhang, Mingxia Xu, Baoan Liu, Lili Zhu, Lisong Zhang, Xinguang Xu, Zhengping Wang, and Xun Sun  »View Author Affiliations

Optical Materials Express, Vol. 2, Issue 6, pp. 735-739 (2012)

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The non-critical phase matching (PM) conditions of deuterated dihydrogen phosphate (DKDP) crystal are investigated in this paper for fourth harmonic generation (FHG) of Nd:YAG crystal and Nd:glass lasers, which include exterior angle deviation, deuterium content and PM temperature. DKDP crystals of different deuterium content were grown from aqueous solutions and cut for type-I non-critical phase-matching with the direction at 90° to the crystal Z axis (θ = 90°) and at 45° to the crystal X axis (Ф = 45°). The samples are measured for FHG at 1064 nm and 1053 nm, respectively. The deuterium content of DKDP crystal that supports non-critical phase-matching for FHG experiments is confirmed by measuring the relationship of deuterium content and phase-matching angle. Additionally, the non-critical phase matching temperature is also examined.

© 2012 OSA

OCIS Codes
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4400) Nonlinear optics : Nonlinear optics, materials
(140.3515) Lasers and laser optics : Lasers, frequency doubled

ToC Category:
Nonlinear Optical Materials

Original Manuscript: February 24, 2012
Revised Manuscript: April 18, 2012
Manuscript Accepted: April 19, 2012
Published: April 30, 2012

Shaohua Ji, Shaojun Zhang, Mingxia Xu, Baoan Liu, Lili Zhu, Lisong Zhang, Xinguang Xu, Zhengping Wang, and Xun Sun, "Non-critical phase-matching conditions for fourth harmonic generation of DKDP crystal," Opt. Mater. Express 2, 735-739 (2012)

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