Broadband second harmonic generation from ZnO nano-tetrapods

S. L. Shi; S. J. Xu; Zong Xiang Xu; V. A.L. Roy; Chi Ming Che

doi:10.1016/j.cplett.2011.03.006

Broadband second harmonic generation from ZnO nano-tetrapods

S. L. Shi, S. J. Xu, Zong Xiang Xu, V. A.L. Roy, Chi Ming Che

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

10 Citations (Scopus)

Abstract

Second harmonic generation (SHG) from ZnO bulk single crystal and nano-tetrapods were comparatively studied at room temperature for a wide wavelength range of 710-930 nm by using femtosecond broadband near-infrared laser as the excitation source. Strong enhancement of SHG was interestingly observed in the tetrapods, especially for the excitation photon energy less than the half band gap of ZnO. Broadband efficient SHG of the tetrapods is attributed to the structural symmetry breaking in the surface area of tetrapods with four long arms.

Original language	English
Pages (from-to)	226-229
Number of pages	4
Journal	Chemical Physics Letters
Volume	506
Issue number	4-6
DOIs	https://doi.org/10.1016/j.cplett.2011.03.006
Publication status	Published - 20 Apr 2011
Externally published	Yes

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10.1016/j.cplett.2011.03.006

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title = "Broadband second harmonic generation from ZnO nano-tetrapods",

abstract = "Second harmonic generation (SHG) from ZnO bulk single crystal and nano-tetrapods were comparatively studied at room temperature for a wide wavelength range of 710-930 nm by using femtosecond broadband near-infrared laser as the excitation source. Strong enhancement of SHG was interestingly observed in the tetrapods, especially for the excitation photon energy less than the half band gap of ZnO. Broadband efficient SHG of the tetrapods is attributed to the structural symmetry breaking in the surface area of tetrapods with four long arms.",

author = "Shi, {S. L.} and Xu, {S. J.} and Xu, {Zong Xiang} and Roy, {V. A.L.} and Che, {Chi Ming}",

note = "Funding Information: The financial support from the Joint Research Fund for Overseas Chinese, Hong Kong and Macau Scientists of NSFC (Grant No. 61028012 ) and HK RGC-CERG Grants (Grant No. HKU 7056/06P ) is acknowledged. This work was also partially supported by HK-RGC-AoE Grant (Grant No. P-03/08 ).",

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month = apr,

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doi = "10.1016/j.cplett.2011.03.006",

language = "English",

volume = "506",

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T1 - Broadband second harmonic generation from ZnO nano-tetrapods

AU - Shi, S. L.

AU - Xu, S. J.

AU - Xu, Zong Xiang

AU - Roy, V. A.L.

AU - Che, Chi Ming

N1 - Funding Information: The financial support from the Joint Research Fund for Overseas Chinese, Hong Kong and Macau Scientists of NSFC (Grant No. 61028012 ) and HK RGC-CERG Grants (Grant No. HKU 7056/06P ) is acknowledged. This work was also partially supported by HK-RGC-AoE Grant (Grant No. P-03/08 ).

PY - 2011/4/20

Y1 - 2011/4/20

N2 - Second harmonic generation (SHG) from ZnO bulk single crystal and nano-tetrapods were comparatively studied at room temperature for a wide wavelength range of 710-930 nm by using femtosecond broadband near-infrared laser as the excitation source. Strong enhancement of SHG was interestingly observed in the tetrapods, especially for the excitation photon energy less than the half band gap of ZnO. Broadband efficient SHG of the tetrapods is attributed to the structural symmetry breaking in the surface area of tetrapods with four long arms.

AB - Second harmonic generation (SHG) from ZnO bulk single crystal and nano-tetrapods were comparatively studied at room temperature for a wide wavelength range of 710-930 nm by using femtosecond broadband near-infrared laser as the excitation source. Strong enhancement of SHG was interestingly observed in the tetrapods, especially for the excitation photon energy less than the half band gap of ZnO. Broadband efficient SHG of the tetrapods is attributed to the structural symmetry breaking in the surface area of tetrapods with four long arms.

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U2 - 10.1016/j.cplett.2011.03.006

DO - 10.1016/j.cplett.2011.03.006

M3 - Article

AN - SCOPUS:79954612148

SN - 0009-2614

VL - 506

SP - 226

EP - 229

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4-6

ER -

Broadband second harmonic generation from ZnO nano-tetrapods

Abstract

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