Surface plasmon-coupled ultraviolet emission of 2,5-Diphenyl-1,3,4-oxadiazole

Joanna Malicka, Ignacy Gryczynski, Zygmunt Gryczynski, Joseph R. Lakowicz

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

We studied surface plasmon-coupled emission (SPCE) of 2,5-diphenyl-1,3,4-oxadiazole (PPD) using a 20 nm aluminum film deposited on a quartz substrate. The directional SPCE UV fluorescence occurs within a narrow angle at 57° from the normal to the coupling hemicylindrical prism. This radiation is almost completely p-polarized, consistent with its origin from surface plasmons. These surface plasmons are induced by excited PPD molecules. The coupling of excited fluorophore dipoles with the aluminum is highly efficient, exceeding 50%. Different fluorescence emission wavelengths are emitted at slightly different angles on the prism, providing intrinsic spectral resolution. SPCE fluorescence on thin aluminum films can be used with many UV absorbing and emitting fluorophores.

Original languageEnglish
Pages (from-to)19114-19118
Number of pages5
JournalJournal of Physical Chemistry B
Volume108
Issue number50
DOIs
StatePublished - 16 Dec 2004

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ultraviolet emission
Aluminum
Plasmons
Fluorophores
Fluorescence
Tuberculin
Prisms
aluminum
plasmons
fluorescence
prisms
Quartz
Spectral resolution
spectral resolution
quartz
2,5-diphenyloxazole
dipoles
Radiation
Wavelength
Molecules

Cite this

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abstract = "We studied surface plasmon-coupled emission (SPCE) of 2,5-diphenyl-1,3,4-oxadiazole (PPD) using a 20 nm aluminum film deposited on a quartz substrate. The directional SPCE UV fluorescence occurs within a narrow angle at 57° from the normal to the coupling hemicylindrical prism. This radiation is almost completely p-polarized, consistent with its origin from surface plasmons. These surface plasmons are induced by excited PPD molecules. The coupling of excited fluorophore dipoles with the aluminum is highly efficient, exceeding 50{\%}. Different fluorescence emission wavelengths are emitted at slightly different angles on the prism, providing intrinsic spectral resolution. SPCE fluorescence on thin aluminum films can be used with many UV absorbing and emitting fluorophores.",
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Surface plasmon-coupled ultraviolet emission of 2,5-Diphenyl-1,3,4-oxadiazole. / Malicka, Joanna; Gryczynski, Ignacy; Gryczynski, Zygmunt; Lakowicz, Joseph R.

In: Journal of Physical Chemistry B, Vol. 108, No. 50, 16.12.2004, p. 19114-19118.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Surface plasmon-coupled ultraviolet emission of 2,5-Diphenyl-1,3,4-oxadiazole

AU - Malicka, Joanna

AU - Gryczynski, Ignacy

AU - Gryczynski, Zygmunt

AU - Lakowicz, Joseph R.

PY - 2004/12/16

Y1 - 2004/12/16

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