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Title: Strong Localization of Surface Plasmon Polaritons with Engineered Disorder

Abstract

Here in this work, we experimentally demonstrate for the first time strong localization of surface plasmon polaritons (SPPs) at visible regime in metallic nanogratings with short-range correlated disorder. By increasing the degree of disorder, the confinement of SPPs is significantly enhanced, and the effective SPP propagation length dramatically shrinks. Strong localization of SPPs eventually emerges at visible regime, which is verified by the exponentially decayed fields and the vanishing autocorrelation function of the SPPs. Physically, the short-range correlated disorder induces strong interference among multiple scattered SPPs and provides an adequate fluctuation to effective permittivity, which leads to the localization effect. Finally, our study demonstrates a unique opportunity for disorder engineering to manipulate light on nanoscale and may achieve various applications in random nanolasing, solar energy, and strong light-matter interactions.

Authors:
 [1];  [1]; ORCiD logo [1];  [1];  [1];  [1];  [1];  [2];  [1];  [1]
  1. Nanjing Univ. (China). National Lab. of Solid State Microstructures, School of Physics, and Collaborative Innovation Center of Advanced Microstructures
  2. Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Natural Science Foundation of China (NNSFC)
OSTI Identifier:
1461460
Grant/Contract Number:  
AC02-06CH11357
Resource Type:
Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 18; Journal Issue: 3; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; Anderson localization; Random nanolasing; Short-range correlated disorder; Strong localization of surface plasmon polaritons

Citation Formats

Shi, Wen-Bo, Liu, Lian-Zi, Peng, Ruwen, Xu, Di-Hu, Zhang, Kun, Jing, Hao, Fan, Ren-Hao, Huang, Xian-Rong, Wang, Qian-Jin, and Wang, Mu. Strong Localization of Surface Plasmon Polaritons with Engineered Disorder. United States: N. p., 2018. Web. doi:10.1021/acs.nanolett.7b05191.
Shi, Wen-Bo, Liu, Lian-Zi, Peng, Ruwen, Xu, Di-Hu, Zhang, Kun, Jing, Hao, Fan, Ren-Hao, Huang, Xian-Rong, Wang, Qian-Jin, & Wang, Mu. Strong Localization of Surface Plasmon Polaritons with Engineered Disorder. United States. doi:10.1021/acs.nanolett.7b05191.
Shi, Wen-Bo, Liu, Lian-Zi, Peng, Ruwen, Xu, Di-Hu, Zhang, Kun, Jing, Hao, Fan, Ren-Hao, Huang, Xian-Rong, Wang, Qian-Jin, and Wang, Mu. Mon . "Strong Localization of Surface Plasmon Polaritons with Engineered Disorder". United States. doi:10.1021/acs.nanolett.7b05191. https://www.osti.gov/servlets/purl/1461460.
@article{osti_1461460,
title = {Strong Localization of Surface Plasmon Polaritons with Engineered Disorder},
author = {Shi, Wen-Bo and Liu, Lian-Zi and Peng, Ruwen and Xu, Di-Hu and Zhang, Kun and Jing, Hao and Fan, Ren-Hao and Huang, Xian-Rong and Wang, Qian-Jin and Wang, Mu},
abstractNote = {Here in this work, we experimentally demonstrate for the first time strong localization of surface plasmon polaritons (SPPs) at visible regime in metallic nanogratings with short-range correlated disorder. By increasing the degree of disorder, the confinement of SPPs is significantly enhanced, and the effective SPP propagation length dramatically shrinks. Strong localization of SPPs eventually emerges at visible regime, which is verified by the exponentially decayed fields and the vanishing autocorrelation function of the SPPs. Physically, the short-range correlated disorder induces strong interference among multiple scattered SPPs and provides an adequate fluctuation to effective permittivity, which leads to the localization effect. Finally, our study demonstrates a unique opportunity for disorder engineering to manipulate light on nanoscale and may achieve various applications in random nanolasing, solar energy, and strong light-matter interactions.},
doi = {10.1021/acs.nanolett.7b05191},
journal = {Nano Letters},
number = 3,
volume = 18,
place = {United States},
year = {2018},
month = {2}
}

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Cited by: 4 works
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Figures / Tables:

Figure 1 Figure 1 : SEM images of (a) the periodic nanograting (Sample I) and (b) a disordered nanorgrating with disorder degree $ƞ$=40% (Sample II). Inset show the magnified details. Each scale bar is 1 μm. The slit width is always w = 50 nm and the grating period of (a) ismore » $p$ = 250 nm. Both gratings consist of 50 slits. Thickness of the silver films is $d$ = 60 nm. (c) Schematic of the experimental setup. The incident laser is coupled into the surface with a single slit, and the SPPs then propagate into the grating. The leaky mode can be captured to trace the propagation of the SPPs.« less

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