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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 18 — Sep. 15, 2009
  • pp: 2817–2819

Large third-order susceptibility and third-harmonic generation in centrosymmetric Cu 2 O crystal

Shahin E. Mani, Joon I. Jang, and John B. Ketterson  »View Author Affiliations

Optics Letters, Vol. 34, Issue 18, pp. 2817-2819 (2009)

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We present what we believe to be the first experimental determination of the third-order optical susceptibility χ ( 3 ) of bulk cuprous oxide ( Cu 2 O ) crystals. The measured nonlinear refractive index, obtained with the Z-scan technique at 1064 nm , is n 2 = 1.32 × 10 10 esu , while the two-photon absorption coefficient is β = 5.0 cm GW of Cu 2 O . We also observe strong third-harmonic generation (THG) from Cu 2 O in our detection range owing to its unique crystal and electronic structure. Considering that the first nonvanishing nonlinear term is χ ( 3 ) , this classical semiconductor could be utilized as a promising active THG medium.

© 2009 Optical Society of America

OCIS Codes
(160.4330) Materials : Nonlinear optical materials
(190.4160) Nonlinear optics : Multiharmonic generation
(190.4720) Nonlinear optics : Optical nonlinearities of condensed matter

ToC Category:
Nonlinear Optics

Original Manuscript: June 1, 2009
Revised Manuscript: August 3, 2009
Manuscript Accepted: August 7, 2009
Published: September 10, 2009

Shahin E. Mani, Joon I. Jang, and John B. Ketterson, "Large third-order susceptibility and third-harmonic generation in centrosymmetric Cu2O crystal," Opt. Lett. 34, 2817-2819 (2009)

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