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Optically Induced Stark Shift in DFB Resonators
Author(s) -
Jetter M.,
Stalzer H.,
Körbl M.,
Porsche J.,
Scholz F.,
Schweizer H.
Publication year - 1999
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/(sici)1521-3951(199909)215:1<269::aid-pssb269>3.0.co;2-0
Subject(s) - stark effect , quantum tunnelling , dipole , electron , coupling (piping) , excitation , resonator , optoelectronics , quantum confined stark effect , atomic physics , condensed matter physics , physics , materials science , electric field , quantum mechanics , metallurgy
We design, as a possible device structure for optic–optic switching, an electronic three level system with distributed electronic wave function and localised hole function on the basis of the quantum mechanical tunnel effect between asymmetric coupled double quantum wells (ASC‐DQWs). After strong optical excitation the ASC‐DQW shows a strong dipole field which induces strong Stark shifts in the whole electronic structure. The dipole fields can be enhanced and used for coupling if the ASC‐DQW is patterned in wire or dot structures. We demonstrate by periodic wire arrays light‐induced Stark shifts of the electronic states and thus switching. Due to the short tunnelling times of the electrons in the three level system of the ASC‐DQW time responses of the Stark shift in the ps range are possible.