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Strong photon bunching in a quantum‐dot‐based two‐mode microcavity laser
Author(s) -
Leymann Heinrich A. M.,
Foerster Alexander,
Khanbekyan Mikayel,
Wiersig Jan
Publication year - 2013
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.201200715
Subject(s) - physics , photon , degenerate energy levels , quantum dot , laser , optical microcavity , coupling (piping) , mode coupling , quantum dot laser , semiconductor , mode (computer interface) , semiconductor laser theory , quantum mechanics , materials science , computer science , metallurgy , operating system
We present a theoretical study of a quantum‐dot‐based microcavity laser where two nearly degenerate high‐ Q modes are involved in the laser dynamics. To analyze the coupled carrier‐photon system we have extended a single mode microscopic semiconductor theory to the case of two modes and have also taken the crosscorrelation functions into account. Our theoretical results show that the mode which loses the mode competition exhibit super‐thermal photon bunching ( g ( 2 ) ( 0 ) > 2 ). This interesting feature is traced back to mode coupling induced by the gain medium.The strong correlation between the two modes is revealed by calculation of the photon cross correlation functions.