| Autor: |
O. M. Sarkisov, A. Sobennikov, F. E. Gostev, V. A. Nadtochenko, A. S. Lobach, D. O. Tcherbinin |
| Rok vydání: |
2005 |
| Předmět: |
|
| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| Popis: |
Transient absorption spectra and relaxation dynamics of excited SWNT were studied by femtosecond absorption spectroscopy as a function of: the energy of excitation quanta (ℏω = 2 eV, 2.5 eV, 4 eV); the density of the excitation energy; polarizations of the pump and probe pulses. The transient absorption spectra were monitored by white supercontinuum light pulse in the spectral region of ∼ 1.2 ÷ 3.6 eV. The induced transient absorption spectra of SWNT are considered as filling of the size‐quantized energy bands with nonequilibrium carriers; renormalization of the one‐dimensional energy bands at high density of the induced plasma; quantum confined Stark effect and screening of excitons. The anisotropic relaxation rate is observed. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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