Thursday, March 21, 2013

1303.4852 (M. J. Huttunen et al.)

Measurement of optical second-harmonic generation from an individual
single-walled carbon nanotube
   [PDF]

M. J. Huttunen, O. Herranen, A. Johansson, H. Jiang, P. R. Mudimela, P. Myllyperkiö, G. Bautista, A. G. Nasibulin, E. I. Kauppinen, M. Ahlskog, M. Kauranen, M. Pettersson
We show that optical second-harmonic generation (SHG) can be observed from individual single-walled carbon nanotubes (SWCNTs) and, furthermore, allows imaging of individual tubes. Detailed analysis of our results suggests that the structural noncentrosymmetry, as required for SHG, arises from the non-zero chiral angle of the SWCNT. SHG thus has potential as a fast, non-destructive, and simple method for imaging of individual nanomolecules and for probing their chiral properties. Even more, it opens the possibility to optically determine the handedness of individual SWCNTs.
View original: http://arxiv.org/abs/1303.4852

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