Gold nanorod plasmonic upconversion microlaser

Author

Ce Shi ; Soltani, Sima ; Armani, Andrea M.

Author_Institution

Mork Family Dept. of Chem. Eng. & Mater. Sci., Univ. of Southern California, Los Angeles, CA, USA

fYear

2014

fDate

18-21 Aug. 2014

Firstpage

435

Lastpage

438

Abstract

Gold nanorods (GNRs) have drawn wide interests among researchers due to their up-conversion emission properties, and have been widely applied as an imaging contrast agent both in vivo and in vitro. The majority of past research and studies focused on luminescence of GNRs excited by a laser at the wavelength blue-shifted from Longitudinal Plasmon Resonance. Here by coating GNRs on an optical resonator, we demonstrated a visible laser at 575nm from GNRs with an approximately 1nm linewidth, pumped by optical resonators with resonance matching Longitudinal Plasmon Resonance of GNRs. The threshold powers have been optimized by varying concentrations of GNRs on toroidal surface, and have been as low as 20μW.

Keywords

antireflection coatings; gold; nanophotonics; nanorods; optical pumping; optical resonators; photoluminescence; plasmonics; solid lasers; spectral line shift; surface plasmon resonance; Au; GNR; blue-shifted; gold nanorod plasmonic upconversion microlaser; longitudinal plasmon resonance; luminescence; optical resonator; resonance matching; threshold powers; toroidal surface; wavelength 575 nm; Gold; Lasers; Luminescence; Nanoparticles; Optical resonators; Plasmons; Silicon compounds;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology (IEEE-NANO), 2014 IEEE 14th International Conference on

Conference_Location

Toronto, ON

Type

conf

DOI

10.1109/NANO.2014.6967959

Filename

6967959