NDLI: All-optical structure assignment of individual single-walled carbon nanotubes from Rayleigh and Raman scattering measurements

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All-optical structure assignment of individual single-walled carbon nanotubes from Rayleigh and Raman scattering measurements

Content Provider	Semantic Scholar
Author	Berciaud, St'ephane Deshpande, Vikram V. Caldwell, Robert Miyauchi, Yuhei Voisin, Christophe Kim, Philip James Heinz, Tony F.
Copyright Year	2012
Abstract	We present an all-optical method for structure assignment of individual single-walled carbon nanotubes (SWNTs) based on combined measurements of the elastically (Rayleigh) and inelastically (Raman) scattered light by individual freestanding specimens. The optical resonances of a single SWNT are identified from the Rayleigh spectra. These measurements are complemented with an independent estimation of the SWNT diameter and chiral angle from its radial breathing and G Raman modes, respectively. An assignment of the (n,m) chiral indices can thus be provided. In the most simple cases, a reliable structure assignment can be inferred from the Rayleigh spectra alone. However, we also show that SWNTs with different structures may display similar Rayleigh spectra within a given photon energy window. In these situations, Raman measurements provide unambiguous criteria for a proper structure assignment. This approach is particularly helpful in order to identify the high-symmetry armchair and zig-zag structures.
Starting Page	2436
Ending Page	2441
Page Count	6
File Format	PDF HTM / HTML
DOI	10.1002/pssb.201200152
Volume Number	249
Alternate Webpage(s)	https://web.stanford.edu/group/heinz/publications/Pub197.pdf
Alternate Webpage(s)	http://pico.phys.columbia.edu/pdf_papers/pssb_201200152_sb.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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