Publication

Linear dichroism of CdSe nanodots: Large anisotropy of the band-gap absorption induced by ground-state dipole moments

Majed Chergui, Frank van Mourik, Dino Tonti, Gérard Giraud
2008
Journal Articles

Abstract

The authors measured the elec. field induced linear dichroism for a wide range of sizes of CdSe nanocrystals. Large ground-state dipole moments were obsd., esp. for the smallest crystals. In these, the authors found a very large anisotropy of the absorption and most of the dipole strength is along the direction of the ground-state dipole moment. For the anisotropy, the authors propose a mechanism for intensity borrowing from intraband transitions, induced by the field of the ground-state dipole moment.

Official source

https://infoscience.epfl.ch/entities/publication/42b1f7fd-a4f4-4fe8-af84-8cfc990865ac

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Linear dichroism of CdSe nanodots: Large anisotropy of the band-gap absorption induced by ground-state dipole moments

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