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Science 26 November 2004:
Vol. 306. no. 5701, p. 1433
DOI: 10.1126/science.306.5701.1433o
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Rayleigh scattering with a white-light supercontinuum source has now been used to characterize nanoscale objects. Sfeir et al. (p. 1540, published online 28 October 2004) show that the output signal in their experiments does not necessarily require particular sample properties, such as the ability to luminesce, and thus represents a general characterization technique. For example, carbon nanotubes are usually synthesized as complex mixtures, but the supercontinuum white-light scattering technique allows all of the samples to be probed in parallel. An individual signature of the nanotubes can then be probed further with other complementary and individual nanotube characterization tools.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)