Emission enhancement in nanowire-nanoantenna system fabricated by nanomanipulation

Author

Ono, M. ; Kuramochi, E. ; Zhang, G. ; Sumikura, H. ; Harada, Y. ; Cox, D. ; Notomi, M.

Author_Institution

NTT Nanophotonics Center, NTT Corp., Atsugi, Japan

fYear

2014

fDate

12-16 Oct. 2014

Firstpage

532

Lastpage

533

Abstract

We fabricated a unique system in which a semiconductor nanowire and a gold bowtie nanoantenna are combined. InP nanowire is precisely placed in the nanogap of the nanoantenna with a nanomanipulator installed in a focused ion beam system. By measuring the intensity mapping of the photoluminescence from the nanowire, we observed a significantly large enhancement at the antenna gap. We also calculated the electric field numerically, and the simulated results showed that the large enhancement that is obtained was caused by plasmonic resonance and was affected by the breakdown of the field suppression effect in the subwavelength nanowire.

Keywords

III-V semiconductors; bow-tie antennas; focused ion beam technology; gold; indium compounds; nanofabrication; nanophotonics; nanowires; optical fabrication; photoluminescence; Au; InP; electric field; emission enhancement; field suppression effect; focused ion beam system; gold bowtie nanoantenna; nanogap; nanomanipulation; nanowire-nanoantenna system; photoluminescence; plasmonic resonance; semiconductor nanowire; Antennas; Electric fields; Gold; Indium phosphide; Plasmons; Scanning electron microscopy; Substrates; Nanostructures; Plasmonics; Subwavelength structures; Surface plasmons;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics Conference (IPC), 2014 IEEE

Conference_Location

San Diego, CA

Type

conf

DOI

10.1109/IPCon.2014.6995485

Filename

6995485