Photoemission Electron Microscopy of Blue and UV Surface Plasmons on Nanostructured Aluminum Films

Thomas Jauk; Harald Ditlbacher; Florian Lackner; Wolfgang E. Ernst; Andreas Hohenau; Joachim R. Krenn

doi:10.1007/s11468-023-01967-x

Photoemission Electron Microscopy of Blue and UV Surface Plasmons on Nanostructured Aluminum Films

Thomas Jauk, Harald Ditlbacher, Florian Lackner, Wolfgang E. Ernst, Andreas Hohenau, Joachim R. Krenn^*

^*Corresponding author for this work

Institute of Experimental Physics (5110)

Research output: Contribution to journal › Article › peer-review

Abstract

We image surface plasmons on aluminum surfaces in the ultraviolet and blue spectral range with photoemission electron microscopy (PEEM). Plasmon excitation is mediated by light incident on straight aluminum ridges with subwavelength cross section on flat aluminum films. We observe interference patterns due to light/plasmon interaction, with distinct periodicity and orientation depending on the light in-plane incidence angle with respect to the ridge orientation. From the interference patterns, we deduce the surface plasmon propagation directions and decay lengths. The latter are remarkably high with 2.8 μ m and 8.4 μ m for excitation wavelengths of 273 nm and 410 nm, respectively. Our results extend PEEM imaging of surface plasmons into the ultraviolet region.

Original language	English
Number of pages	7
Journal	Plasmonics
DOIs	https://doi.org/10.1007/s11468-023-01967-x
Publication status	E-pub ahead of print - 2 Aug 2023

Keywords

Aluminum
PEEM
Plasmonics
Surface plasmon

ASJC Scopus subject areas

General Materials Science

Fields of Expertise

Advanced Materials Science

Cooperations

NAWI Graz

Access to Document

10.1007/s11468-023-01967-xLicence: CC BY 4.0

Cite this

@article{8610f4ccf8cf4525b0ae7bbb288db9dd,

title = "Photoemission Electron Microscopy of Blue and UV Surface Plasmons on Nanostructured Aluminum Films",

abstract = "We image surface plasmons on aluminum surfaces in the ultraviolet and blue spectral range with photoemission electron microscopy (PEEM). Plasmon excitation is mediated by light incident on straight aluminum ridges with subwavelength cross section on flat aluminum films. We observe interference patterns due to light/plasmon interaction, with distinct periodicity and orientation depending on the light in-plane incidence angle with respect to the ridge orientation. From the interference patterns, we deduce the surface plasmon propagation directions and decay lengths. The latter are remarkably high with 2.8 μ m and 8.4 μ m for excitation wavelengths of 273 nm and 410 nm, respectively. Our results extend PEEM imaging of surface plasmons into the ultraviolet region.",

keywords = "Aluminum, PEEM, Plasmonics, Surface plasmon",

author = "Thomas Jauk and Harald Ditlbacher and Florian Lackner and Ernst, {Wolfgang E.} and Andreas Hohenau and Krenn, {Joachim R.}",

note = "Funding Information: Open access funding provided by University of Graz. The authors acknowledge support by NAWI Graz and the Austrian Science Fund (FWF) grant P30940-N39. Publisher Copyright: {\textcopyright} 2023, The Author(s).",

year = "2023",

month = aug,

day = "2",

doi = "10.1007/s11468-023-01967-x",

language = "English",

journal = "Plasmonics",

issn = "1557-1955",

publisher = "Springer Science + Business Media",

}

TY - JOUR

T1 - Photoemission Electron Microscopy of Blue and UV Surface Plasmons on Nanostructured Aluminum Films

AU - Jauk, Thomas

AU - Ditlbacher, Harald

AU - Lackner, Florian

AU - Ernst, Wolfgang E.

AU - Hohenau, Andreas

AU - Krenn, Joachim R.

N1 - Funding Information: Open access funding provided by University of Graz. The authors acknowledge support by NAWI Graz and the Austrian Science Fund (FWF) grant P30940-N39. Publisher Copyright: © 2023, The Author(s).

PY - 2023/8/2

Y1 - 2023/8/2

N2 - We image surface plasmons on aluminum surfaces in the ultraviolet and blue spectral range with photoemission electron microscopy (PEEM). Plasmon excitation is mediated by light incident on straight aluminum ridges with subwavelength cross section on flat aluminum films. We observe interference patterns due to light/plasmon interaction, with distinct periodicity and orientation depending on the light in-plane incidence angle with respect to the ridge orientation. From the interference patterns, we deduce the surface plasmon propagation directions and decay lengths. The latter are remarkably high with 2.8 μ m and 8.4 μ m for excitation wavelengths of 273 nm and 410 nm, respectively. Our results extend PEEM imaging of surface plasmons into the ultraviolet region.

AB - We image surface plasmons on aluminum surfaces in the ultraviolet and blue spectral range with photoemission electron microscopy (PEEM). Plasmon excitation is mediated by light incident on straight aluminum ridges with subwavelength cross section on flat aluminum films. We observe interference patterns due to light/plasmon interaction, with distinct periodicity and orientation depending on the light in-plane incidence angle with respect to the ridge orientation. From the interference patterns, we deduce the surface plasmon propagation directions and decay lengths. The latter are remarkably high with 2.8 μ m and 8.4 μ m for excitation wavelengths of 273 nm and 410 nm, respectively. Our results extend PEEM imaging of surface plasmons into the ultraviolet region.

KW - Aluminum

KW - PEEM

KW - Plasmonics

KW - Surface plasmon

UR - http://www.scopus.com/inward/record.url?scp=85166571713&partnerID=8YFLogxK

U2 - 10.1007/s11468-023-01967-x

DO - 10.1007/s11468-023-01967-x

M3 - Article

AN - SCOPUS:85166571713

SN - 1557-1955

JO - Plasmonics

JF - Plasmonics

ER -

Photoemission Electron Microscopy of Blue and UV Surface Plasmons on Nanostructured Aluminum Films

Abstract

Keywords

ASJC Scopus subject areas

Fields of Expertise

Cooperations

Access to Document

Other files and links

Fingerprint

Cite this