Open AccessOptical trapping of carbon nanotubes and graphene
Author(s) -
Sebastiano Vasi,
Marco A Monaca,
M. G. Donato,
Francesco Bonaccorso,
Giulia Privitera,
O. Trushkevych,
Giuseppe Calogero,
Barbara Fazio,
Alessia Irrera,
Maria Antonia Iatı̀,
Rosalba Saija,
P. Denti,
F. Borghese,
Philip H. Jones,
AC Ferrari,
P. G. Gucciardi,
Onofrio M. Maragò
Publication year - 2011
Publication title -
shilap revista de lepidopterología
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.338
H-Index - 12
eISSN - 2340-4078
pISSN - 0300-5267
DOI - 10.1478/c1v89s1p090
Subject(s) - optical tweezers , graphene , carbon nanotube , raman spectroscopy , photoluminescence , materials science , trapping , spectroscopy , optical force , raman scattering , optoelectronics , molecular physics , nanotechnology , optics , physics , quantum mechanics , ecology , biology
We study optical trapping of nanotubes and graphene. We extract the distribution of both centre-of-mass and angular fluctuations from three-dimensional tracking of these optically trapped carbon nanostructures. The optical force and torque constants are measured from auto and cross-correlation of the tracking signals. We demonstrate that nanotubes enable nanometer spatial, and femto-Newton force resolution in photonic force microscopy by accurately measuring the radiation pressure in a double frequency optical tweezers. Finally, we integrate optical trapping with Raman and photoluminescence spectroscopy demonstrating the use of a Raman and photoluminescence tweezers by investigating the spectroscopy of nanotubes and graphene flakes in solution. Experimental results are compared with calculations based on electromagnetic scattering theory
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