Strong optical absorption of a metallic film to induce a lensing effect in the visible region

An Qing Jiang, Kai Yan Zang, Er Tao Hu, Hua Tian Tu, Lei Xu, Wen Shuai Ren, Osamu Yoshie, Young Pak Lee, Yu Xiang Zheng, Song You Wang, Hai Bin Zhao, Jun Peng Guo, C. Z. Wang, K. M. Ho, David W. Lynch, Liang Yao Chen

Research output: Contribution to journalArticle

Abstract

In this work, the two-dimensional profile of the light transmission through a prism-like metallic film sample of Au was measured at a wavelength of 632.8 nm in the visible intraband transition region to verify that, beyond the possible mechanisms of overcoming the diffraction limit, a strongly nonuniform optical absorption path length of the light traveling in the metal could induce a lensing effect, thereby narrowing the image of an object. A set of prism-like Au samples with different angles was prepared and experimentally investigated. Due to the nonuniform paths of the light traveling in the Au samples, lens-effect-like phenomena were clearly observed that reduced the imaged size of the beam spot with decreasing light intensity. The experimental measurements presented in the work may provide new insight to better understand the light propagation behavior at a metal/dielectric interface.

Original languageEnglish
Article number12434
JournalScientific reports
Volume9
Issue number1
DOIs
Publication statusPublished - 2019 Dec 1

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Light
Metals
Lenses

ASJC Scopus subject areas

  • General

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Jiang, A. Q., Zang, K. Y., Hu, E. T., Tu, H. T., Xu, L., Ren, W. S., ... Chen, L. Y. (2019). Strong optical absorption of a metallic film to induce a lensing effect in the visible region. Scientific reports, 9(1), [12434]. https://doi.org/10.1038/s41598-019-48938-z

Strong optical absorption of a metallic film to induce a lensing effect in the visible region. / Jiang, An Qing; Zang, Kai Yan; Hu, Er Tao; Tu, Hua Tian; Xu, Lei; Ren, Wen Shuai; Yoshie, Osamu; Lee, Young Pak; Zheng, Yu Xiang; Wang, Song You; Zhao, Hai Bin; Guo, Jun Peng; Wang, C. Z.; Ho, K. M.; Lynch, David W.; Chen, Liang Yao.

In: Scientific reports, Vol. 9, No. 1, 12434, 01.12.2019.

Research output: Contribution to journalArticle

Jiang, AQ, Zang, KY, Hu, ET, Tu, HT, Xu, L, Ren, WS, Yoshie, O, Lee, YP, Zheng, YX, Wang, SY, Zhao, HB, Guo, JP, Wang, CZ, Ho, KM, Lynch, DW & Chen, LY 2019, 'Strong optical absorption of a metallic film to induce a lensing effect in the visible region', Scientific reports, vol. 9, no. 1, 12434. https://doi.org/10.1038/s41598-019-48938-z
Jiang, An Qing ; Zang, Kai Yan ; Hu, Er Tao ; Tu, Hua Tian ; Xu, Lei ; Ren, Wen Shuai ; Yoshie, Osamu ; Lee, Young Pak ; Zheng, Yu Xiang ; Wang, Song You ; Zhao, Hai Bin ; Guo, Jun Peng ; Wang, C. Z. ; Ho, K. M. ; Lynch, David W. ; Chen, Liang Yao. / Strong optical absorption of a metallic film to induce a lensing effect in the visible region. In: Scientific reports. 2019 ; Vol. 9, No. 1.
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AU - Guo, Jun Peng

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