Non-paraxial contributions to the far-field pattern of surface-emitting lasers: Amanifestation of the momentum-space wavefunctions of quantum billiards

Y. T. Yu, Y. J. Huang, P. Y. Chiang, Y. C. Lin, Kai-Feng Huang, Yung-Fu Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

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.

Original languageEnglish
Article number075705
JournalJournal of Optics
Volume13
Issue number7
DOIs
StatePublished - 1 Jul 2011

Keywords

  • Surface-emitting laser
  • far-field pattern
  • non-paraxial effect
  • quantum billiards

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