Surface-plasmon-induced light absorption on a rough silver surface

Sun Kyung Kim, Ho Seok Ee, Woonkyung Choi, Soon Hong Kwon, Ju Hyung Kang, Yoon Ho Kim, Hoki Kwon, Hong Kyu Park

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

We investigate light absorption in metal films, silver and aluminum, with different surface roughness. Measurements using an integrating sphere show that the reflectance in silver decreases significantly with increasing surface roughness whereas the reflectance in aluminum is almost constant. The experimental results agree well with numerical simulations in which the surface roughness of metal is described properly. In particular, the simulations demonstrate that the absorption by surface-plasmon-polaritons excited on a rough silver surface causes the surface-dependent reflectance in silver. This study suggests a convenient and feasible rule to rationally design a backside metal reflector toward high-efficiency light-emitting diodes and photovoltaics.

Original languageEnglish
Article number011109
JournalApplied Physics Letters
Volume98
Issue number1
DOIs
Publication statusPublished - 2011 Jan 3

Fingerprint

electromagnetic absorption
silver
surface roughness
reflectance
aluminum
metal films
polaritons
metals
reflectors
light emitting diodes
simulation
causes

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Kim, S. K., Ee, H. S., Choi, W., Kwon, S. H., Kang, J. H., Kim, Y. H., ... Park, H. K. (2011). Surface-plasmon-induced light absorption on a rough silver surface. Applied Physics Letters, 98(1), [011109]. https://doi.org/10.1063/1.3537812

Surface-plasmon-induced light absorption on a rough silver surface. / Kim, Sun Kyung; Ee, Ho Seok; Choi, Woonkyung; Kwon, Soon Hong; Kang, Ju Hyung; Kim, Yoon Ho; Kwon, Hoki; Park, Hong Kyu.

In: Applied Physics Letters, Vol. 98, No. 1, 011109, 03.01.2011.

Research output: Contribution to journalArticle

Kim, SK, Ee, HS, Choi, W, Kwon, SH, Kang, JH, Kim, YH, Kwon, H & Park, HK 2011, 'Surface-plasmon-induced light absorption on a rough silver surface', Applied Physics Letters, vol. 98, no. 1, 011109. https://doi.org/10.1063/1.3537812
Kim SK, Ee HS, Choi W, Kwon SH, Kang JH, Kim YH et al. Surface-plasmon-induced light absorption on a rough silver surface. Applied Physics Letters. 2011 Jan 3;98(1). 011109. https://doi.org/10.1063/1.3537812
Kim, Sun Kyung ; Ee, Ho Seok ; Choi, Woonkyung ; Kwon, Soon Hong ; Kang, Ju Hyung ; Kim, Yoon Ho ; Kwon, Hoki ; Park, Hong Kyu. / Surface-plasmon-induced light absorption on a rough silver surface. In: Applied Physics Letters. 2011 ; Vol. 98, No. 1.
@article{a1024f0885fc403b8bd7f3a5fc7d7a7e,
title = "Surface-plasmon-induced light absorption on a rough silver surface",
abstract = "We investigate light absorption in metal films, silver and aluminum, with different surface roughness. Measurements using an integrating sphere show that the reflectance in silver decreases significantly with increasing surface roughness whereas the reflectance in aluminum is almost constant. The experimental results agree well with numerical simulations in which the surface roughness of metal is described properly. In particular, the simulations demonstrate that the absorption by surface-plasmon-polaritons excited on a rough silver surface causes the surface-dependent reflectance in silver. This study suggests a convenient and feasible rule to rationally design a backside metal reflector toward high-efficiency light-emitting diodes and photovoltaics.",
author = "Kim, {Sun Kyung} and Ee, {Ho Seok} and Woonkyung Choi and Kwon, {Soon Hong} and Kang, {Ju Hyung} and Kim, {Yoon Ho} and Hoki Kwon and Park, {Hong Kyu}",
year = "2011",
month = "1",
day = "3",
doi = "10.1063/1.3537812",
language = "English",
volume = "98",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "1",

}

TY - JOUR

T1 - Surface-plasmon-induced light absorption on a rough silver surface

AU - Kim, Sun Kyung

AU - Ee, Ho Seok

AU - Choi, Woonkyung

AU - Kwon, Soon Hong

AU - Kang, Ju Hyung

AU - Kim, Yoon Ho

AU - Kwon, Hoki

AU - Park, Hong Kyu

PY - 2011/1/3

Y1 - 2011/1/3

N2 - We investigate light absorption in metal films, silver and aluminum, with different surface roughness. Measurements using an integrating sphere show that the reflectance in silver decreases significantly with increasing surface roughness whereas the reflectance in aluminum is almost constant. The experimental results agree well with numerical simulations in which the surface roughness of metal is described properly. In particular, the simulations demonstrate that the absorption by surface-plasmon-polaritons excited on a rough silver surface causes the surface-dependent reflectance in silver. This study suggests a convenient and feasible rule to rationally design a backside metal reflector toward high-efficiency light-emitting diodes and photovoltaics.

AB - We investigate light absorption in metal films, silver and aluminum, with different surface roughness. Measurements using an integrating sphere show that the reflectance in silver decreases significantly with increasing surface roughness whereas the reflectance in aluminum is almost constant. The experimental results agree well with numerical simulations in which the surface roughness of metal is described properly. In particular, the simulations demonstrate that the absorption by surface-plasmon-polaritons excited on a rough silver surface causes the surface-dependent reflectance in silver. This study suggests a convenient and feasible rule to rationally design a backside metal reflector toward high-efficiency light-emitting diodes and photovoltaics.

UR - http://www.scopus.com/inward/record.url?scp=78651323927&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=78651323927&partnerID=8YFLogxK

U2 - 10.1063/1.3537812

DO - 10.1063/1.3537812

M3 - Article

AN - SCOPUS:78651323927

VL - 98

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 1

M1 - 011109

ER -