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Title: Bright visible emission from carbon nanotubes spatially constrained on a micro-bubble
Authors: Ramanandan, Gopika
Dharmadhikari, A.K.
Dharmadhikari, J.A.
Ramachandran, Hema
Mathur, Deepak
Issue Date: May-2009
Publisher: Optical Society of America
Citation: Optics Express, 2009, Vol. 17, p9614
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.
Description: Restricted Access
ISSN: 1094-4087 (online)
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Copyright: 2009 Optical Society of America
Appears in Collections:Research Papers (LAMP)

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