Non-paraxial contributions to the far-field pattern of surface-emitting lasers: a manifestation of the momentum-space wavefunctions of quantum billiards
Yu, Y T; Huang, Y J; Chiang, P Y; Lin, Y C; Huang, K F; Chen, Y F; Chen, Y F;; Yu, Y T; Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan; Huang, Y J; Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan; Chiang, P Y; Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan; Lin, Y C; Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan; Huang, K F; Department of Electrophysics, National Chiao Tung University, Hsinchu, Taiwan
Журнал:
Journal of Optics
Дата:
2011-07-01
Аннотация:
We investigated experimentally non-paraxial contributions to the high-order far-field pattern of large-area vertical-cavity surface-emitting lasers in order to explore by analogy the momentum-space wave distributions of quantum billiards. Our results reveal that non-paraxial contributions significantly influence the morphology of the high-order far-field pattern. A fast reliable method is developed for transforming the experimental far-field patterns to the correct Fourier transform of the corresponding near-field lasing modes. In this way we visualize the momentum-space (p–q) wavefunctions of quantum billiards.
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