Ultrafast dynamics of carrier-induced absorption changes in highly-excited CdSe nanocrystals | Zendy

S. Hunsche | Zendy; T. Dekorsy | Zendy; Victor I. Klimov | Zendy; H. Kurz | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Ultrafast dynamics of carrier-induced absorption changes in highly-excited CdSe nanocrystals

Author(s) -

S. Hunsche,

T. Dekorsy,

Victor I. Klimov,

H. Kurz

Publication year - 1996

Publication title -

applied physics b

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.591

H-Index - 131

eISSN - 1432-0649

pISSN - 0946-2171

DOI - 10.1007/bf01081240

Subject(s) - femtosecond , ultrafast laser spectroscopy , materials science , ultrashort pulse , absorption (acoustics) , absorption spectroscopy , excited state , spectroscopy , relaxation (psychology) , molecular physics , saturation (graph theory) , nanocrystal , atomic physics , optics , laser , nanotechnology , physics , psychology , social psychology , mathematics , quantum mechanics , combinatorics , composite material

We use femtosecond time-resolved transmission spectroscopy to study the density and time dependence of transient absorption changes of CdSe nanocrystals. Our data show pronounced absorption saturation up to complete bleaching of the lowest optical transition. At high carrier density the nonlinear spectra show several peaks that can be related to the two lowest quantized electron states. Thetime dependence of the carrier-induced absorption changes indicates an ultrafast relaxation process within the strongly broadened absorption lines.

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research