Cross-polarized spectroscopy of DNA-wrapped nanotubes: Unraveling the nature of optical response

Slava V. Rotkin, Stacy E. Snyder

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations


Breaking of the symmetry of a single-wall carbon nanotube in the field of a helical wrap of ionized single-stranded DNA is investigated. For a non-chiral tube, the helical perturbation generates "natural" optical activity in the DNA-nanotube complex. The one-electron absorption spectrum for light polarized across the tube is sensitive to the band structure modulation due to the wrapping. Lifting of optical selection rules results in new optical transitions and circular dichroism of the complex. These optical effects are predicted to serve as qualitative tools to directly identify the DNA wrapping.

Original languageEnglish (US)
Title of host publicationCarbon Nanotubes and Associated Devices
StatePublished - 2008
EventCarbon Nanotubes and Associated Devices - San Diego, CA, United States
Duration: Aug 10 2008Aug 12 2008

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherCarbon Nanotubes and Associated Devices
Country/TerritoryUnited States
CitySan Diego, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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