Tip-based measurement of the spectral and angular response of plasmonic thin films

Hongki Lee; Seongmin Im; Changhun Lee; Donghyun Kim

doi:10.1117/12.2579013

Tip-based measurement of the spectral and angular response of plasmonic thin films

Hongki Lee, Seongmin Im, Changhun Lee, Donghyun Kim

Department of Electrical and Electronic Engineering

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

Abstract

We have investigated the plasmonic effect of a gold thin film on the optical properties under a range of combinations of incident wavelengths, incident angles and polarization states, while assuming various film thicknesses. Theoretical calculation was performed with rigorous coupled-wave analysis based on the temperature-dependent Drude-Lorentz dispersion model. The calculation method considers the effects of absorption, which is converted to heat in a gold thin film and can affect material parameters such as permittivity. Experimentally, light absorption and field enhancement factor were directly measured using near-field scanning optical microscopy. We have also measured the near-field distribution and thermal effects in the gold thin film. Absorption and field enhancement experimentally measured using three incident wavelengths of 488, 532, and 721 nm for a thin gold film with thicknesses 20, 50, and 70 nm showed good agreement with calculated data. Also observed was the disparity between the incident angles that correspond to maximum absorption and highest field enhancement. The results can help understand the thermal effects on optical properties of plasmonic nanostructures for applications in biological imaging and sensing techniques.

Original language	English
Title of host publication	Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVIII
Editors	Dror Fixler, Ewa M. Goldys, Sebastian Wachsmann-Hogiu
Publisher	SPIE
ISBN (Electronic)	9781510641518
DOIs	https://doi.org/10.1117/12.2579013
Publication status	Published - 2021
Event	Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVIII 2021 - Vierual, Online, United States Duration: 2021 Mar 6 → 2021 Mar 11

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	11658
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVIII 2021
Country/Territory	United States
City	Vierual, Online
Period	21/3/6 → 21/3/11

Bibliographical note

Funding Information:
This work was supported by National Research Foundation grants funded by the Korean government (2019R1A4A1025958 and 2019K2A9A2A08000198) and partly sponsored by the Ministry of Trade, Industry and Energy (P048000064). Authors also acknowledge the support from the Korea Medical Device Development Fund (Project Number: 202012B12 and 202011D25).

Publisher Copyright:
© 2021 SPIE. All rights reserved.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2579013

Cite this

Lee, H., Im, S., Lee, C., & Kim, D. (2021). Tip-based measurement of the spectral and angular response of plasmonic thin films. In D. Fixler, E. M. Goldys, & S. Wachsmann-Hogiu (Eds.), Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVIII [116580N] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11658). SPIE. https://doi.org/10.1117/12.2579013

@inproceedings{974aad38957f47b38352fa428ce68879,

title = "Tip-based measurement of the spectral and angular response of plasmonic thin films",

abstract = "We have investigated the plasmonic effect of a gold thin film on the optical properties under a range of combinations of incident wavelengths, incident angles and polarization states, while assuming various film thicknesses. Theoretical calculation was performed with rigorous coupled-wave analysis based on the temperature-dependent Drude-Lorentz dispersion model. The calculation method considers the effects of absorption, which is converted to heat in a gold thin film and can affect material parameters such as permittivity. Experimentally, light absorption and field enhancement factor were directly measured using near-field scanning optical microscopy. We have also measured the near-field distribution and thermal effects in the gold thin film. Absorption and field enhancement experimentally measured using three incident wavelengths of 488, 532, and 721 nm for a thin gold film with thicknesses 20, 50, and 70 nm showed good agreement with calculated data. Also observed was the disparity between the incident angles that correspond to maximum absorption and highest field enhancement. The results can help understand the thermal effects on optical properties of plasmonic nanostructures for applications in biological imaging and sensing techniques.",

author = "Hongki Lee and Seongmin Im and Changhun Lee and Donghyun Kim",

note = "Funding Information: This work was supported by National Research Foundation grants funded by the Korean government (2019R1A4A1025958 and 2019K2A9A2A08000198) and partly sponsored by the Ministry of Trade, Industry and Energy (P048000064). Authors also acknowledge the support from the Korea Medical Device Development Fund (Project Number: 202012B12 and 202011D25). Publisher Copyright: {\textcopyright} 2021 SPIE. All rights reserved.; Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVIII 2021 ; Conference date: 06-03-2021 Through 11-03-2021",

year = "2021",

doi = "10.1117/12.2579013",

language = "English",

series = "Proceedings of SPIE - The International Society for Optical Engineering",

publisher = "SPIE",

editor = "Dror Fixler and Goldys, {Ewa M.} and Sebastian Wachsmann-Hogiu",

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Lee, H, Im, S, Lee, C & Kim, D 2021, Tip-based measurement of the spectral and angular response of plasmonic thin films. in D Fixler, EM Goldys & S Wachsmann-Hogiu (eds), Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVIII., 116580N, Proceedings of SPIE - The International Society for Optical Engineering, vol. 11658, SPIE, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVIII 2021, Vierual, Online, United States, 21/3/6. https://doi.org/10.1117/12.2579013

Tip-based measurement of the spectral and angular response of plasmonic thin films. / Lee, Hongki; Im, Seongmin; Lee, Changhun et al.

Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVIII. ed. / Dror Fixler; Ewa M. Goldys; Sebastian Wachsmann-Hogiu. SPIE, 2021. 116580N (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 11658).

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

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T1 - Tip-based measurement of the spectral and angular response of plasmonic thin films

AU - Lee, Hongki

AU - Im, Seongmin

AU - Lee, Changhun

AU - Kim, Donghyun

N1 - Funding Information: This work was supported by National Research Foundation grants funded by the Korean government (2019R1A4A1025958 and 2019K2A9A2A08000198) and partly sponsored by the Ministry of Trade, Industry and Energy (P048000064). Authors also acknowledge the support from the Korea Medical Device Development Fund (Project Number: 202012B12 and 202011D25). Publisher Copyright: © 2021 SPIE. All rights reserved.

PY - 2021

Y1 - 2021

N2 - We have investigated the plasmonic effect of a gold thin film on the optical properties under a range of combinations of incident wavelengths, incident angles and polarization states, while assuming various film thicknesses. Theoretical calculation was performed with rigorous coupled-wave analysis based on the temperature-dependent Drude-Lorentz dispersion model. The calculation method considers the effects of absorption, which is converted to heat in a gold thin film and can affect material parameters such as permittivity. Experimentally, light absorption and field enhancement factor were directly measured using near-field scanning optical microscopy. We have also measured the near-field distribution and thermal effects in the gold thin film. Absorption and field enhancement experimentally measured using three incident wavelengths of 488, 532, and 721 nm for a thin gold film with thicknesses 20, 50, and 70 nm showed good agreement with calculated data. Also observed was the disparity between the incident angles that correspond to maximum absorption and highest field enhancement. The results can help understand the thermal effects on optical properties of plasmonic nanostructures for applications in biological imaging and sensing techniques.

AB - We have investigated the plasmonic effect of a gold thin film on the optical properties under a range of combinations of incident wavelengths, incident angles and polarization states, while assuming various film thicknesses. Theoretical calculation was performed with rigorous coupled-wave analysis based on the temperature-dependent Drude-Lorentz dispersion model. The calculation method considers the effects of absorption, which is converted to heat in a gold thin film and can affect material parameters such as permittivity. Experimentally, light absorption and field enhancement factor were directly measured using near-field scanning optical microscopy. We have also measured the near-field distribution and thermal effects in the gold thin film. Absorption and field enhancement experimentally measured using three incident wavelengths of 488, 532, and 721 nm for a thin gold film with thicknesses 20, 50, and 70 nm showed good agreement with calculated data. Also observed was the disparity between the incident angles that correspond to maximum absorption and highest field enhancement. The results can help understand the thermal effects on optical properties of plasmonic nanostructures for applications in biological imaging and sensing techniques.

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M3 - Conference contribution

AN - SCOPUS:85108458526

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVIII

A2 - Fixler, Dror

A2 - Goldys, Ewa M.

A2 - Wachsmann-Hogiu, Sebastian

PB - SPIE

T2 - Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XVIII 2021

Y2 - 6 March 2021 through 11 March 2021

ER -

Tip-based measurement of the spectral and angular response of plasmonic thin films

Abstract

Publication series

Conference

Bibliographical note

All Science Journal Classification (ASJC) codes

Access to Document

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