Many‐Body Theory for the Dense Exciton Gas of Direct Semiconductors. III. Response of the Many‐Exciton System on an Externally Driven Light Field | Zendy

May V. | Zendy; Boldt F. | Zendy; Henneberger K. | Zendy

Premium

Many‐Body Theory for the Dense Exciton Gas of Direct Semiconductors. III. Response of the Many‐Exciton System on an Externally Driven Light Field

Author(s) -

May V.,

Boldt F.,

Henneberger K.

Publication year - 1985

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2221310222

Subject(s) - exciton , bistability , physics , distribution function , optical bistability , condensed matter physics , boltzmann equation , field (mathematics) , semiconductor , biexciton , diffusion , boltzmann constant , nonlinear system , quantum mechanics , nonlinear optics , mathematics , pure mathematics

The nonlinear response of a dense exciton gas in a platelet on an externally driven field is discussed using non equilibrium Green's function technique. A generalized Boltzmann‐equation of excitons containing many‐particle corrections in the diffusion‐, drift‐ and collision‐term is derived. Using a relaxed distribution (Boltzmann‐distribution) and an unrelaxed distribution (macro‐occupation) of ls‐excitons a bistability in exciton density as well as in the transmitted light intensity is obtained for a nearly resonant and stationary applied pump‐field of intensity 0.1 and 10kW/cm 2 , respectively. The bistability is obtained as a pure excitonic effect below the Mott‐transition.

This content is not available in your region!

Continue researching here.

Having issues? You can contact us here

Accelerating Research