Backward wave phenomenon for light propagating through a silver nanorod array

Yi Jun Jen; Ching Wei Yu; Chin Te Lin

doi:10.1117/12.825780

Backward wave phenomenon for light propagating through a silver nanorod array

Yi Jun Jen
, Ching Wei Yu
, Chin Te Lin

Department of Electro-Optical Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

In this work, we use glancing angle deposition (GLAD) to fabricate a silver nanorod array. The average tilt angle and diameter of the silver nanorod are 65° ± 5 and 323 nm, respectively. When the array is illuminated by normal incident light, oscillating electric field parallel to the rod and perpendicular to the rod would induce the transverse and longitudinal plasmon resonant modes. As the longitudinal plasmon mode occurs, the absorption of the array with thickness 323nm is enhanced and the TM mode transmittance is reduced to be 0.3 percentages. The transmitted ellipsometric parameters are measured and the phase difference between TE mode and TM mode transmission coefficients is detected. The absolute transmission coefficient is measured by walk-off interferometer. Compared with the relative phase, the phase of TM mode transmission coefficient becomes a negative value. It is proposed here that a wave propagates through the "effective thin film" and acts like a backward wave in the film.

Original language	English
Title of host publication	Plasmonics
Subtitle of host publication	Metallic Nanostructures and Their Optical Properties VII
DOIs	https://doi.org/10.1117/12.825780
State	Published - 2009
Event	Plasmonics: Metallic Nanostructures and Their Optical Properties VII - San Diego, CA, United States Duration: 2 Aug 2009 → 6 Aug 2009

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	7394
ISSN (Print)	0277-786X

Conference

Conference	Plasmonics: Metallic Nanostructures and Their Optical Properties VII
Country/Territory	United States
City	San Diego, CA
Period	2/08/09 → 6/08/09

Bibliographical note

Funding Information:
The authors gratefully acknowledge the support by National Natural Science Foundation of China (51302264) and the projects of National Science Foundation for Distinguished Young Scholars of China (51125018), as well as One Hundred Talent Program of Chinese Academy of Sciences.

Keywords

Backward wave phenomenon
Plasmon resonant mode
Silver nanorod

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10.1117/12.825780

Cite this

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title = "Backward wave phenomenon for light propagating through a silver nanorod array",

abstract = "In this work, we use glancing angle deposition (GLAD) to fabricate a silver nanorod array. The average tilt angle and diameter of the silver nanorod are 65° ± 5 and 323 nm, respectively. When the array is illuminated by normal incident light, oscillating electric field parallel to the rod and perpendicular to the rod would induce the transverse and longitudinal plasmon resonant modes. As the longitudinal plasmon mode occurs, the absorption of the array with thickness 323nm is enhanced and the TM mode transmittance is reduced to be 0.3 percentages. The transmitted ellipsometric parameters are measured and the phase difference between TE mode and TM mode transmission coefficients is detected. The absolute transmission coefficient is measured by walk-off interferometer. Compared with the relative phase, the phase of TM mode transmission coefficient becomes a negative value. It is proposed here that a wave propagates through the {"}effective thin film{"} and acts like a backward wave in the film.",

keywords = "Backward wave phenomenon, Plasmon resonant mode, Silver nanorod",

author = "Jen, \{Yi Jun\} and Yu, \{Ching Wei\} and Lin, \{Chin Te\}",

note = "Funding Information: The authors gratefully acknowledge the support by National Natural Science Foundation of China (51302264) and the projects of National Science Foundation for Distinguished Young Scholars of China (51125018), as well as One Hundred Talent Program of Chinese Academy of Sciences.; Plasmonics: Metallic Nanostructures and Their Optical Properties VII ; Conference date: 02-08-2009 Through 06-08-2009",

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Jen, YJ, Yu, CW & Lin, CT 2009, Backward wave phenomenon for light propagating through a silver nanorod array. in Plasmonics: Metallic Nanostructures and Their Optical Properties VII., 73942F, Proceedings of SPIE - The International Society for Optical Engineering, vol. 7394, Plasmonics: Metallic Nanostructures and Their Optical Properties VII, San Diego, CA, United States, 2/08/09. https://doi.org/10.1117/12.825780

Backward wave phenomenon for light propagating through a silver nanorod array. / Jen, Yi Jun; Yu, Ching Wei; Lin, Chin Te.
Plasmonics: Metallic Nanostructures and Their Optical Properties VII. 2009. 73942F (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 7394).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Yu, Ching Wei

AU - Lin, Chin Te

N1 - Funding Information: The authors gratefully acknowledge the support by National Natural Science Foundation of China (51302264) and the projects of National Science Foundation for Distinguished Young Scholars of China (51125018), as well as One Hundred Talent Program of Chinese Academy of Sciences.

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N2 - In this work, we use glancing angle deposition (GLAD) to fabricate a silver nanorod array. The average tilt angle and diameter of the silver nanorod are 65° ± 5 and 323 nm, respectively. When the array is illuminated by normal incident light, oscillating electric field parallel to the rod and perpendicular to the rod would induce the transverse and longitudinal plasmon resonant modes. As the longitudinal plasmon mode occurs, the absorption of the array with thickness 323nm is enhanced and the TM mode transmittance is reduced to be 0.3 percentages. The transmitted ellipsometric parameters are measured and the phase difference between TE mode and TM mode transmission coefficients is detected. The absolute transmission coefficient is measured by walk-off interferometer. Compared with the relative phase, the phase of TM mode transmission coefficient becomes a negative value. It is proposed here that a wave propagates through the "effective thin film" and acts like a backward wave in the film.

AB - In this work, we use glancing angle deposition (GLAD) to fabricate a silver nanorod array. The average tilt angle and diameter of the silver nanorod are 65° ± 5 and 323 nm, respectively. When the array is illuminated by normal incident light, oscillating electric field parallel to the rod and perpendicular to the rod would induce the transverse and longitudinal plasmon resonant modes. As the longitudinal plasmon mode occurs, the absorption of the array with thickness 323nm is enhanced and the TM mode transmittance is reduced to be 0.3 percentages. The transmitted ellipsometric parameters are measured and the phase difference between TE mode and TM mode transmission coefficients is detected. The absolute transmission coefficient is measured by walk-off interferometer. Compared with the relative phase, the phase of TM mode transmission coefficient becomes a negative value. It is proposed here that a wave propagates through the "effective thin film" and acts like a backward wave in the film.

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KW - Plasmon resonant mode

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Backward wave phenomenon for light propagating through a silver nanorod array

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Keywords

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