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Optics Letters

Optics Letters

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  • Vol. 36, Iss. 10 — May. 15, 2011
  • pp: 1824–1826

Noncritically phase-matched fourth harmonic generation of Nd:glass lasers in partially deuterated KDP crystals

Steven T. Yang, Mark A. Henesian, Timothy L. Weiland, James L. Vickers, Ronald L. Luthi, John P. Bielecki, and Paul J. Wegner  »View Author Affiliations


Optics Letters, Vol. 36, Issue 10, pp. 1824-1826 (2011)
http://dx.doi.org/10.1364/OL.36.001824


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Abstract

Noncritically phase-matched (NCPM) fourth harmonic generation (FHG) of Nd:glass laser radiation in partially deuterated dihydrogen phosphate (KD*P) crystals has been demonstrated. At an Nd:glass laser wavelength of 1053.0 nm , NCPM FHG is achieved in 70% deuterated KD*P at a crystal temperature of 18.5 ± 0.1 ° C . Tuning the fundamental laser wavelength from 1052.9 to 1053.2 nm , FHG in KD*P is NCPM by changing the crystal temperature from 17.9 ° C to 20.5 ° C . When driven with 2.4 J of second harmonic radiation in a 3 ns flat-top pulse, corresponding to 1 GW / cm 2 2 ω drive intensity, 1.9 J of fourth harmonic radiation was generated in a 6 mm long KD*P crystal, yielding a second to fourth harmonic energy conversion efficiency of 79%.

OCIS Codes
(140.0140) Lasers and laser optics : Lasers and laser optics
(190.0190) Nonlinear optics : Nonlinear optics
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4400) Nonlinear optics : Nonlinear optics, materials

ToC Category:
Lasers and Laser Optics

History
Original Manuscript: March 22, 2011
Revised Manuscript: April 14, 2011
Manuscript Accepted: April 15, 2011
Published: May 9, 2011

Citation
Steven T. Yang, Mark A. Henesian, Timothy L. Weiland, James L. Vickers, Ronald L. Luthi, John P. Bielecki, and Paul J. Wegner, "Noncritically phase-matched fourth harmonic generation of Nd:glass lasers in partially deuterated KDP crystals," Opt. Lett. 36, 1824-1826 (2011)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-36-10-1824

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