%0 Journal Article %1 perfetti2006ultrafast %A Perfetti, L %A Kampfrath, T %A Schapper, F %A Hagen, A %A Hertel, T %A Aguirre, CM %A Desjardins, P %A Martel, R %A Frischkorn, C %A Wolf, M %D 2006 %J PHYSICAL REVIEW LETTERS %K imported myown %N 2 %R 10.1103/PhysRevLett.96.027401 %T Ultrafast dynamics of delocalized and localized electrons in carbon nanotubes %V 96 %X We report on the dynamics of the dielectric function of single-wall carbon nanotubes in the 10-30 THz frequency range after ultrafast laser excitation. The absence of a distinct free-carrier response is attributed to the photogeneration of strongly bound excitons in the tubes with large energy gaps. We find a feature of enhanced transmission caused by the blocking of optical transitions in small-gap tubes. The rapid decay of a featureless background with pronounced dichroism is associated with the increased absorption of spatially localized charge carriers before thermalization is completed.

@article{perfetti2006ultrafast, abstract = {{We report on the dynamics of the dielectric function of single-wall carbon nanotubes in the 10-30 THz frequency range after ultrafast laser excitation. The absence of a distinct free-carrier response is attributed to the photogeneration of strongly bound excitons in the tubes with large energy gaps. We find a feature of enhanced transmission caused by the blocking of optical transitions in small-gap tubes. The rapid decay of a featureless background with pronounced dichroism is associated with the increased absorption of spatially localized charge carriers before thermalization is completed.}}, added-at = {2021-01-26T13:44:08.000+0100}, article-number = {{027401}}, author = {Perfetti, L and Kampfrath, T and Schapper, F and Hagen, A and Hertel, T and Aguirre, CM and Desjardins, P and Martel, R and Frischkorn, C and Wolf, M}, biburl = {https://www.bibsonomy.org/bibtex/24718e35065f11c1d6df17ced3841e9bc/hertel-group}, doi = {{10.1103/PhysRevLett.96.027401}}, eissn = {{1079-7114}}, interhash = {b5df087bd7ea48aba5982da54c31c7dc}, intrahash = {4718e35065f11c1d6df17ced3841e9bc}, issn = {{0031-9007}}, journal = {{PHYSICAL REVIEW LETTERS}}, keywords = {imported myown}, month = {{JAN 20}}, number = {{2}}, orcid-numbers = {{Martel, Richard/0000-0002-9021-4656 Desjardins, Patrick/0000-0002-5492-700X}}, researcherid-numbers = {{Martel, Richard/G-7589-2011 Wolf, Martin/Q-3548-2016 Hertel, Tobias/D-5805-2013 Hertel, Tobias/J-4243-2012 Desjardins, Patrick/A-5080-2009}}, timestamp = {2021-01-26T13:44:20.000+0100}, title = {{Ultrafast dynamics of delocalized and localized electrons in carbon nanotubes}}, unique-id = {{ISI:000234758100095}}, volume = {{96}}, year = {{2006}} }