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Principles of leaky-mode photonic lattices: Band flips and Bloch mode dynamics
Author(s): Robert Magnusson; Sun-Goo Lee; Kyu J. Lee; Hafez Hemmati; Daniel J. Carney; Pawarat Bootpakdeetam; Yeong Hwan Ko
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Paper Abstract

We present principles of leaky-mode photonic lattices explaining key properties enabling potential device applications. The one-dimensional grating-type canonical model is rich in properties and conceptually transparent encompassing all essential attributes applicable to two-dimensional metasurfaces and periodic photonic slabs. We address the operative physical mechanisms grounded in lateral leaky Bloch mode resonance emphasizing the significant influence imparted by the periodicity and the waveguide characteristics of the lattice. The effects discussed are not explainable in terms of local Fabry-Perot or Mie resonances. In particular, herein, we summarize the band dynamics of the leaky stopband revealing principal Bragg diffraction processes responsible for band-gap size and band closure conditions. We review Bloch wave vector control of spectral characteristics in terms of distinct evanescent diffraction channels driving designated Bloch modes in the lattice.

Paper Details

Date Published: 4 March 2019
PDF: 8 pages
Proc. SPIE 10921, Integrated Optics: Devices, Materials, and Technologies XXIII, 109211E (4 March 2019); doi: 10.1117/12.2508984
Show Author Affiliations
Robert Magnusson, The Univ. of Texas at Arlington (United States)
Sun-Goo Lee, The Univ. of Texas at Arlington (United States)
Kyu J. Lee, The Univ. of Texas at Arlington (United States)
Hafez Hemmati, The Univ. of Texas at Arlington (United States)
Daniel J. Carney, The Univ. of Texas at Arlington (United States)
Pawarat Bootpakdeetam, The Univ. of Texas at Arlington (United States)
Yeong Hwan Ko, The Univ. of Texas at Arlington (United States)


Published in SPIE Proceedings Vol. 10921:
Integrated Optics: Devices, Materials, and Technologies XXIII
Sonia M. García-Blanco; Pavel Cheben, Editor(s)

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