Title :
Surface plasmon polariton enhanced fluorescence from quantum dots on nanostructured metal surfaces
Author :
Hwang, Ehren ; Smolyaninov, Igor I. ; Davis, Christopher C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Maryland, College Park, MD, USA
Abstract :
In this paper, PMMA surface gratings defined using electron beam lithography patterned on gold coated substrates were used to excite surface plasmon polaritons. The enhancement of fluorescence from quantum dots was demonstrated. SEM and AFM imagery were used to determine deposited quantum dots and development of structures. It was observed that there were optimal duty cycle for maximum emission as well as the presence of apparent threshold in the film thickness.
Keywords :
atomic force microscopy; electron beam deposition; electron beam lithography; fluorescence; gold; metallic thin films; nanopatterning; nanostructured materials; polaritons; polymers; quantum dots; scanning electron microscopy; surface plasmons; AFM; Au; PMMA surface gratings; SEM; electron beam lithography; film thickness; fluorescence; gold coated substrates; nanostructured metal surfaces; optimal duty cycle; quantum dots; structures; surface plasmon polariton; Educational institutions; Electron beams; Fluorescence; Gratings; Optical scattering; Optical surface waves; Plasmons; Quantum dots; Substrates; Surface waves;
Conference_Titel :
Semiconductor Device Research Symposium, 2009. ISDRS '09. International
Conference_Location :
College Park, MD
Print_ISBN :
978-1-4244-6030-4
Electronic_ISBN :
978-1-4244-6031-1
DOI :
10.1109/ISDRS.2009.5378009
