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

Gopika K. P. Ramanandan | Zendy; A. K. Dharmadhikari | Zendy; J. A. Dharmadhikari | Zendy; Hema Ramachandran | Zendy; D. Mathur | Zendy

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

Author(s) -

Gopika K. P. Ramanandan,

A. K. Dharmadhikari,

J. A. Dharmadhikari,

Hema Ramachandran,

D. Mathur

Publication year - 2009

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.009614

Subject(s) - carbon nanotube , materials science , optics , bubble , optical tweezers , laser , optoelectronics , visible spectrum , carbon fibers , white light , irradiation , nanotechnology , composite material , composite number , physics , parallel computing , computer science , nuclear physics

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.

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