Lasing mode pattern of a quantum cascade photonic crystal surface-emitting microcavity laser

Srinivasan, Kartik; Painter, Oskar; Colombelli, Raffaele; Gmachl, Claire; Tennant, Donald M.; Sergent, A. Michael; Sivco, Deborah L.; Cho, Alfred Y.; Troccoli, Mariano; Capasso, Federico
May 2004
Applied Physics Letters;5/24/2004, Vol. 84 Issue 21, p4164
Academic Journal
The identification of the lasing mode within a quantum cascade photonic crystal microcavity laser emitting at λ∼8 μm is presented. The symmetry of the lasing mode is determined by the position of nodal lines within micro-bolometer camera measurements of its polarized spatial distribution. Full three-dimensional finite-difference time-domain simulations are also performed, and the resulting vertically emitted radiation field pattern is seen to follow the experimental results closely. © 2004 American Institute of Physics.


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