Large third-order susceptibility and third-harmonic generation in centrosymmetric Cu2O crystal

Shahin E. Mani; Joon I. Jang; John B. Ketterson

doi:10.1364/OL.34.002817

Large third-order susceptibility and third-harmonic generation in centrosymmetric Cu₂O crystal

Shahin E. Mani, Joon I. Jang, John B. Ketterson

Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

27 Scopus citations

Abstract

We present what we believe to be the first experimental determination of the third-order optical susceptibility χ⁽³⁾ of bulk cuprous oxide (Cu₂O) crystals. The measured nonlinear refractive index, obtained with the Z-scan technique at 1064 nm, is n₂ = 1.32 X 10^-10 esu, while the two-photon absorption coefficient is β =5.0 cm/GW of Cu₂O. We also observe strong third-harmonic generation (THG) from Cu₂O 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.

Original language	English (US)
Pages (from-to)	2817-2819
Number of pages	3
Journal	Optics Letters
Volume	34
Issue number	18
DOIs	https://doi.org/10.1364/OL.34.002817
State	Published - Sep 15 2009

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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title = "Large third-order susceptibility and third-harmonic generation in centrosymmetric Cu2O crystal",

abstract = "We present what we believe to be the first experimental determination of the third-order optical susceptibility χ(3) of bulk cuprous oxide (Cu2O) crystals. The measured nonlinear refractive index, obtained with the Z-scan technique at 1064 nm, is n2 = 1.32 X 10-10 esu, while the two-photon absorption coefficient is β =5.0 cm/GW of Cu2O. We also observe strong third-harmonic generation (THG) from Cu2O 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.",

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AU - Jang, Joon I.

AU - Ketterson, John B.

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Y1 - 2009/9/15

N2 - We present what we believe to be the first experimental determination of the third-order optical susceptibility χ(3) of bulk cuprous oxide (Cu2O) crystals. The measured nonlinear refractive index, obtained with the Z-scan technique at 1064 nm, is n2 = 1.32 X 10-10 esu, while the two-photon absorption coefficient is β =5.0 cm/GW of Cu2O. We also observe strong third-harmonic generation (THG) from Cu2O 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.

AB - We present what we believe to be the first experimental determination of the third-order optical susceptibility χ(3) of bulk cuprous oxide (Cu2O) crystals. The measured nonlinear refractive index, obtained with the Z-scan technique at 1064 nm, is n2 = 1.32 X 10-10 esu, while the two-photon absorption coefficient is β =5.0 cm/GW of Cu2O. We also observe strong third-harmonic generation (THG) from Cu2O 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.

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Large third-order susceptibility and third-harmonic generation in centrosymmetric Cu₂O crystal

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