Measurement of a saturated emission of optical radiation from gold nanoparticles: Application to an ultrahigh resolution microscope

Shi Wei Chu; Tung Yu Su; Ryosuke Oketani; Yen Ta Huang; Hsueh Yu Wu; Yasuo Yonemaru; Masahito Yamanaka; Hsuan Lee; Guan Yu Zhuo; Ming Ying Lee; Satoshi Kawata; Katsumasa Fujita

doi:10.1103/PhysRevLett.112.017402

Measurement of a saturated emission of optical radiation from gold nanoparticles: Application to an ultrahigh resolution microscope

Shi Wei Chu, Tung Yu Su, Ryosuke Oketani, Yen Ta Huang, Hsueh Yu Wu, Yasuo Yonemaru, Masahito Yamanaka, Hsuan Lee, Guan Yu Zhuo, Ming Ying Lee, Satoshi Kawata, Katsumasa Fujita

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36 Citations (Scopus)

Abstract

We show that scattering from a single gold nanoparticle is saturable for the first time. Wavelength-dependent study reveals that the saturation behavior is governed by depletion of surface plasmon resonance, not the thermal effect. We observed interesting flattening of the point spread function of scattering from a single nanoparticle due to saturation. By extracting the saturated part of scattering via temporal modulation, we achieve λ/8 point spread function in far-field imaging with unambiguous separation of adjacent particles.

Original language	English
Article number	017402
Journal	Physical review letters
Volume	112
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevLett.112.017402
Publication status	Published - Jan 7 2014
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.112.017402

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Chu, S. W., Su, T. Y., Oketani, R., Huang, Y. T., Wu, H. Y., Yonemaru, Y., Yamanaka, M., Lee, H., Zhuo, G. Y., Lee, M. Y., Kawata, S., & Fujita, K. (2014). Measurement of a saturated emission of optical radiation from gold nanoparticles: Application to an ultrahigh resolution microscope. Physical review letters, 112(1), [017402]. https://doi.org/10.1103/PhysRevLett.112.017402

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AU - Chu, Shi Wei

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AU - Oketani, Ryosuke

AU - Huang, Yen Ta

AU - Wu, Hsueh Yu

AU - Yonemaru, Yasuo

AU - Yamanaka, Masahito

AU - Lee, Hsuan

AU - Zhuo, Guan Yu

AU - Lee, Ming Ying

AU - Kawata, Satoshi

AU - Fujita, Katsumasa

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Measurement of a saturated emission of optical radiation from gold nanoparticles: Application to an ultrahigh resolution microscope

Abstract

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