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Communication Dans Un Congrès Année : 2014

Resonant raman excitation profiles on individual carbon nanotubes of known absolute optical absorption spectra

Résumé

Recently, we determined using spatial modulation spectroscopy, over a broad optical spectral range, the spectrum and amplitude of the absorption cross-section of individual semiconducting single-wall carbon nanotubes.[1] Here, we will present resonant Raman excitation profiles (REP) of radial breathing modes and G modes measured on the same SWNTs. The transition energies and full width at half-maximum (FWHM) obtained using both measurements techniques will be compared to discuss the different models commonly used to fit REP [2] as illustrated on Figure 1. Furthermore, interference effects on Raman intensity [3] will also be evidenced in the case of two energetically close optical transitions. Finally, some recent results obtained on other systems (SWNTs homogeneous dimer and double-walled carbon nanotubes) will be briefly reported. [1] J.-C. Blancon et al., Nat. Comm. 4 (2013), 2542. [2] C. Thomsen and S. Reich, M. Cardona, R. Merlin (Eds.): Light Scattering in Solid IX,Topics Appl. 3. Physics 108 (2007), pp. 116-232. [3] V. N. Popov and Ph. Lambin, Phys. Rev. B 73 (2006), 165425.
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hal-01973340 , version 1 (08-01-2019)

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  • HAL Id : hal-01973340 , version 1

Citer

Matthieu Paillet, Huy-Nam Tran, J.-C. Blancon, Xuan-Tinh Than, Samuel Aberra Guebrou, et al.. Resonant raman excitation profiles on individual carbon nanotubes of known absolute optical absorption spectra. IWAMSN 2014, Nov 2014, Ha Long City, Vietnam. ⟨hal-01973340⟩
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