Spectral tunability and enhancement of molecular radiative emission by metal-dielectric-metal stratified plasmonic nanostructure

Golmakaniyoon, Sepideh1,2; Hernandez-Martinez, Pedro Ludwig2,3; Demir, Hilmi Volkan1,2,3; Sun, Xiao Wei1,4

2017-08-28

10.1063/1.4985337

APPLIED PHYSICS LETTERS   影响因子和分区

0003-6951

1077-3118

Plasmonic nanostructures have been widely known for their notable capability to enhance spontaneous emission of an electric dipole in their vicinity. Due to the availability of large optical density of states at their metallic surface, the radiative and nonradiative decay channels are dramatically modified. However, enhancement cannot be realized for any desired emissive dipole as the plasmonic resonance frequency is mostly determined intrinsically by the existing plasmonic materials. Although recent studies using metamaterial structures demonstrate a promising approach of tuning the Purcell factor across the emission wavelength, many of the demonstrations lack efficient radiative emission besides the fabrication complexity. Here, we show theoretically and experimentally that a simple metal-dielectric-metal stratified architecture allows for high tunability of the resonance frequency to obtain a maximum radiative decay rate for any desired dipole peak emission wavelength. Owing to the effective cascaded plasmonic mode coupling across the metal-dielectric interfaces, the proposed approach uniquely provides us with the ability to optimize the plasmonic nanostructure for 100% radiative transmission and 3-fold radiative emission enhancement. Published by AIP Publishing.

SCI ; EI

英语

NI期刊

通讯

Singapore Agency for Science, Technology and Research (A*STAR) SERC Pharos Program[1527300025]

Physics

Physics, Applied

WOS:000408751500032

AMER INST PHYSICS

20173604134077

Dielectric materials ; Nanostructures ; Natural frequencies ; Plasmonics ; Plasmons ; Surface plasmon resonance

Dielectric Materials:708.1 ; Nanotechnology:761 ; Atomic and Molecular Physics:931.3 ; Solid State Physics:933

PHYSICS

Web of Science

1.Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 639798, Singapore
2.Nanyang Technol Univ, Sch Elect & Elect Engn, LUMINOUS Ctr Excellence Semicond Lighting & Displ, Singapore 639798, Singapore
3.Nanyang Technol Univ, Sch Phys & Math Sci, Div Phys & Appl Phys, 21 Nanyang Link, Singapore 637371, Singapore
4.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Coll Engn, 1088 Xue Yuan Rd, Shenzhen 518055, Guangdong, Peoples R China

Golmakaniyoon, Sepideh,Hernandez-Martinez, Pedro Ludwig,Demir, Hilmi Volkan,et al. Spectral tunability and enhancement of molecular radiative emission by metal-dielectric-metal stratified plasmonic nanostructure[J]. APPLIED PHYSICS LETTERS,2017,111(9).

Golmakaniyoon, Sepideh,Hernandez-Martinez, Pedro Ludwig,Demir, Hilmi Volkan,&Sun, Xiao Wei.(2017).Spectral tunability and enhancement of molecular radiative emission by metal-dielectric-metal stratified plasmonic nanostructure.APPLIED PHYSICS LETTERS,111(9).

Golmakaniyoon, Sepideh,et al."Spectral tunability and enhancement of molecular radiative emission by metal-dielectric-metal stratified plasmonic nanostructure".APPLIED PHYSICS LETTERS 111.9(2017).