Metallic membranes with subwavelength complementary patterns: Distinct substrates for surface-enhanced raman scattering

Qingzhen Hao; Yong Zeng; Bala Krishna Juluri; Xiande Wang; Brian Kiraly; I. Kao Chiang; Lasse Jensen; Douglas H. Werner; Vincent H. Crespi; Tony Jun Huang

doi:10.1021/nn200704p

Metallic membranes with subwavelength complementary patterns: Distinct substrates for surface-enhanced raman scattering

Qingzhen Hao, Yong Zeng, Bala Krishna Juluri, Xiande Wang, Brian Kiraly, I. Kao Chiang, Lasse Jensen, Douglas H. Werner, Vincent H. Crespi, Tony Jun Huang

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

18 Scopus citations

Abstract

We present a detailed comparison of surface-enhanced Raman spectroscopy (SERS) signals from metallic nanoparticle arrays and their complementary hole arrays. Using an analytical model for local field enhancement, we show that the SERS enhancements of the hole arrays are closely related to their transmission spectra. This trend is experimentally confirmed and characterized by a cos ⁴θ dependence of the SERS signal on the excitation polarization angle θ. The particle arrays, on the other hand, exhibit quite different behavior because of the existence of considerable evanescent modes in the near field. Their maximal local field gains appear at wavelengths generally much larger than their localized surface plasmonic resonant wavelengths.

Original language	English (US)
Pages (from-to)	5472-5477
Number of pages	6
Journal	ACS nano
Volume	5
Issue number	7
DOIs	https://doi.org/10.1021/nn200704p
State	Published - Jul 26 2011

All Science Journal Classification (ASJC) codes

General Materials Science
General Engineering
General Physics and Astronomy

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10.1021/nn200704p

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title = "Metallic membranes with subwavelength complementary patterns: Distinct substrates for surface-enhanced raman scattering",

abstract = "We present a detailed comparison of surface-enhanced Raman spectroscopy (SERS) signals from metallic nanoparticle arrays and their complementary hole arrays. Using an analytical model for local field enhancement, we show that the SERS enhancements of the hole arrays are closely related to their transmission spectra. This trend is experimentally confirmed and characterized by a cos 4θ dependence of the SERS signal on the excitation polarization angle θ. The particle arrays, on the other hand, exhibit quite different behavior because of the existence of considerable evanescent modes in the near field. Their maximal local field gains appear at wavelengths generally much larger than their localized surface plasmonic resonant wavelengths.",

author = "Qingzhen Hao and Yong Zeng and Juluri, {Bala Krishna} and Xiande Wang and Brian Kiraly and Chiang, {I. Kao} and Lasse Jensen and Werner, {Douglas H.} and Crespi, {Vincent H.} and Huang, {Tony Jun}",

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T1 - Metallic membranes with subwavelength complementary patterns

T2 - Distinct substrates for surface-enhanced raman scattering

AU - Hao, Qingzhen

AU - Zeng, Yong

AU - Juluri, Bala Krishna

AU - Wang, Xiande

AU - Kiraly, Brian

AU - Chiang, I. Kao

AU - Jensen, Lasse

AU - Werner, Douglas H.

AU - Crespi, Vincent H.

AU - Huang, Tony Jun

PY - 2011/7/26

Y1 - 2011/7/26

N2 - We present a detailed comparison of surface-enhanced Raman spectroscopy (SERS) signals from metallic nanoparticle arrays and their complementary hole arrays. Using an analytical model for local field enhancement, we show that the SERS enhancements of the hole arrays are closely related to their transmission spectra. This trend is experimentally confirmed and characterized by a cos 4θ dependence of the SERS signal on the excitation polarization angle θ. The particle arrays, on the other hand, exhibit quite different behavior because of the existence of considerable evanescent modes in the near field. Their maximal local field gains appear at wavelengths generally much larger than their localized surface plasmonic resonant wavelengths.

AB - We present a detailed comparison of surface-enhanced Raman spectroscopy (SERS) signals from metallic nanoparticle arrays and their complementary hole arrays. Using an analytical model for local field enhancement, we show that the SERS enhancements of the hole arrays are closely related to their transmission spectra. This trend is experimentally confirmed and characterized by a cos 4θ dependence of the SERS signal on the excitation polarization angle θ. The particle arrays, on the other hand, exhibit quite different behavior because of the existence of considerable evanescent modes in the near field. Their maximal local field gains appear at wavelengths generally much larger than their localized surface plasmonic resonant wavelengths.

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Metallic membranes with subwavelength complementary patterns: Distinct substrates for surface-enhanced raman scattering

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