Title :
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
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;
Conference_Titel :
Photonics Conference (IPC), 2014 IEEE
Conference_Location :
San Diego, CA
DOI :
10.1109/IPCon.2014.6995485
