Srinivasan, KartikPainter, OskarColombelli, RaffaeleGmachl, ClaireTennant, Donald M.Sergent, A. MichaelSivco, Deborah L.Cho, Alfred Y.Troccoli, MarianoCapasso, Federico2019-09-172004Srinivasan, Kartik, Oskar Painter, Raffaele Colombelli, Claire Gmachl, Donald M. Tennant, A. Michael Sergent, Deborah L. Sivco, Alfred Y. Cho, Mariano Troccoli, and Federico Capasso. 2004. “Lasing Mode Pattern of a Quantum Cascade Photonic Crystal Surface-Emitting Microcavity Laser.” Applied Physics Letters 84 (21): 4164–66. https://doi.org/10.1063/1.1755423.0003-69511077-31181520-8842http://nrs.harvard.edu/urn-3:HUL.InstRepos:41371589The identification of the lasing mode within a quantum cascade photonic crystal microcavity laser emitting at lambdasimilar to8 mum 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.en-USJournal Article2019-09-1710.1063/1.1755423