Generation of surface optical screw dislocations by evanescent plasmonic modes

S. Al-Awfi; M. Babiker; V.E. Lembessis; D.L. Andrews

doi:10.1109/SIECPC.2011.5877009

Generation of surface optical screw dislocations by evanescent plasmonic modes

S. Al-Awfi, M. Babiker, V.E. Lembessis, D.L. Andrews

Physics

Research output: Chapter in Book/Report/Conference proceeding › Chapter

Abstract

A novel form of optical screw dislocation based on localized surface-plasmon modes (SPMs) is described. In particular, we show that a metallic sheet in the form an infinitesimally thin film deposited on a planar dielectric substrate creates surface-plasmon modes due to evanescent Laguerre-Gaussian (LG) light. The characteristic property of such a mode is the exponential decay with distance normal to the interface in the vacuum region. This localized mode can be described as a surface optical screw dislocation possessing a desirable enhancement due to the localized surface plasmon content of the mode. Such a screw dislocation is controllable by changing the angle of internal reflection and the quantum numbers of the LG light.

Original language	English
Title of host publication	Saudi International Electronics, Communications and Photonics Conference 2011, SIECPC 2011
DOIs	https://doi.org/10.1109/SIECPC.2011.5877009
Publication status	Published - 1 Jan 2011
Event	Saudi International Electronics, Communications and Photonics Conference 2011, SIECPC 2011 - , Saudi Arabia Duration: 24 Apr 2011 → 26 Apr 2011

Conference

Conference	Saudi International Electronics, Communications and Photonics Conference 2011, SIECPC 2011
Country/Territory	Saudi Arabia
Period	24/04/11 → 26/04/11

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10.1109/SIECPC.2011.5877009

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title = "Generation of surface optical screw dislocations by evanescent plasmonic modes",

abstract = "A novel form of optical screw dislocation based on localized surface-plasmon modes (SPMs) is described. In particular, we show that a metallic sheet in the form an infinitesimally thin film deposited on a planar dielectric substrate creates surface-plasmon modes due to evanescent Laguerre-Gaussian (LG) light. The characteristic property of such a mode is the exponential decay with distance normal to the interface in the vacuum region. This localized mode can be described as a surface optical screw dislocation possessing a desirable enhancement due to the localized surface plasmon content of the mode. Such a screw dislocation is controllable by changing the angle of internal reflection and the quantum numbers of the LG light.",

author = "S. Al-Awfi and M. Babiker and V.E. Lembessis and D.L. Andrews",

year = "2011",

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doi = "10.1109/SIECPC.2011.5877009",

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Al-Awfi, S, Babiker, M, Lembessis, VE & Andrews, DL 2011, Generation of surface optical screw dislocations by evanescent plasmonic modes. in Saudi International Electronics, Communications and Photonics Conference 2011, SIECPC 2011. Saudi International Electronics, Communications and Photonics Conference 2011, SIECPC 2011, Saudi Arabia, 24/04/11. https://doi.org/10.1109/SIECPC.2011.5877009

TY - CHAP

T1 - Generation of surface optical screw dislocations by evanescent plasmonic modes

AU - Al-Awfi, S.

AU - Babiker, M.

AU - Lembessis, V.E.

AU - Andrews, D.L.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - A novel form of optical screw dislocation based on localized surface-plasmon modes (SPMs) is described. In particular, we show that a metallic sheet in the form an infinitesimally thin film deposited on a planar dielectric substrate creates surface-plasmon modes due to evanescent Laguerre-Gaussian (LG) light. The characteristic property of such a mode is the exponential decay with distance normal to the interface in the vacuum region. This localized mode can be described as a surface optical screw dislocation possessing a desirable enhancement due to the localized surface plasmon content of the mode. Such a screw dislocation is controllable by changing the angle of internal reflection and the quantum numbers of the LG light.

AB - A novel form of optical screw dislocation based on localized surface-plasmon modes (SPMs) is described. In particular, we show that a metallic sheet in the form an infinitesimally thin film deposited on a planar dielectric substrate creates surface-plasmon modes due to evanescent Laguerre-Gaussian (LG) light. The characteristic property of such a mode is the exponential decay with distance normal to the interface in the vacuum region. This localized mode can be described as a surface optical screw dislocation possessing a desirable enhancement due to the localized surface plasmon content of the mode. Such a screw dislocation is controllable by changing the angle of internal reflection and the quantum numbers of the LG light.

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U2 - 10.1109/SIECPC.2011.5877009

DO - 10.1109/SIECPC.2011.5877009

M3 - Chapter

AN - SCOPUS:79959937860

SN - 9781457700699

BT - Saudi International Electronics, Communications and Photonics Conference 2011, SIECPC 2011

T2 - Saudi International Electronics, Communications and Photonics Conference 2011, SIECPC 2011

Y2 - 24 April 2011 through 26 April 2011

ER -

Generation of surface optical screw dislocations by evanescent plasmonic modes

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