Surface-plasmon-polariton assisted modification of spontaneous emission of colloidal quantum dots in metal nanostructures
Abstract
We experimentally demonstrate extraordinary optical transmission (EOT) assisted photoluminescence (PL) of CdSe/CdS colloidal quantum dots (QDs). The quantum dots were encapsulated between a metallic nanostructure and a Bragg reflector to enhance the interaction of spontaneously emitted photons with a resonant electromagnetic surface wave. The measured PL spectrum of the fabricated sample exhibits spectral narrowing and a shift in peak wavelength of 22 nm and 7 nm, respectively. Furthermore, we tested the angular dependence of the signal to confirm the existence of EOT. This demonstration is a critical step towards realizing plasmonic colloidal QD based coherent emitters.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 14, 2013
- Source ID
- 10.1063/1.4776736
Entities
People
- Jayson L. Briscoe
- Nadeepa Jayasundara
- Sang-Yeon Cho
Organizations
- Army Research Office
- New Mexico State University
- United States Department of Energy