Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/36474
Title: Simultaneous multi-frequency topological edge modes between one-dimensional photonic crystals
Authors: Choi, KH
Ling, CW
Lee, KF
Tsang, YH 
Fung, KH 
Keywords: Photonic crystals
Berry's phase
Harmonic generation and mixing
Issue Date: 1-Apr-2016
Publisher: Optical Society of America
Source: Optics letters, 1 Apr., 2016, v. 41, no. 7, p. 1644-1647 How to cite?
Journal: Optics letters 
Abstract: We show theoretically that, in the limit of weak dispersion, one-dimensional binary centrosymmetric photonic crystals can support topological edge modes in all photonic andgaps. By analyzing their bulk band topology, these “harmonic” topological edge modes can be designed in a way that they exist at all photonic bandgaps opened at the center of the Brillouin zone, at all gaps opened at the zone boundaries, or both. The results may suggest a new approach to achieve robust multi-frequency coupled modes for applications in nonlinear photonics, such as frequency upconversion.
URI: http://hdl.handle.net/10397/36474
ISSN: 0146-9592 (print)
1539-4794 (eISSN)
DOI: 10.1364/OL.41.001644
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