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Opt Express. 2009 Jun 8;17(12):9614-9.

Bright visible emission from carbon nanotubes spatially constrained on a micro-bubble.

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  • 1Tata Institute of Fundamental Research, Mumbai , India.

Abstract

We report emission of broadband light in the spectral range 500 nm - 900 nm from single walled carbon nanotubes (SWNTs) in a liquid environment upon irradiance by a very low power (typically <5 mW), continuous-wave laser source in a tweezers setup. We show (i) formation of micro-bubbles upon irradiation of fluids containing bundles of SWNTs, (ii) optical trapping of such micro-bubbles, (iii) adhesion of SWNTs on the surface of such micro-bubbles, and (iv) bright emission of white light due to tweezer-induced localized heating of spatially-constrained SWNTs.

PMID:
19506610
[PubMed - indexed for MEDLINE]
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