Using electrons as a high-Resolution probe of optical modes in individual nanowires

Ilke Arslan, Jerome K. Hyun, Rolf Erni, Michael N. Fairchild, Stephen D. Hersee, David A. Muller

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

While nanowires show increasing promise for optoelectronic applications, probing the subwavelength details of their optical modes has been a challenge with light-based techniques. Here we report the excitation of dielectric optical waveguide modes in a single GaN nanowire using transition radiation generated by a 1 nm diameter electron beam. This spatially resolved study opens important gateways to probing the optical modes of more complex nanostructures, fundamental for optimization of optoelectronic device performance.

Original languageEnglish
Pages (from-to)4073-4077
Number of pages5
JournalNano Letters
Volume9
Issue number12
DOIs
StatePublished - 9 Dec 2009

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