Photonic topological insulators and their applications: from delay lines to reflections-free resonators
(Conference Presentation)

Gennady B. Shvets

doi:10.1117/12.2238420

9 November 2016 Photonic topological insulators and their applications: from delay lines to reflections-free resonators (Conference Presentation)

Gennady B. Shvets

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Proceedings Volume 9920, Active Photonic Materials VIII; 99201D (2016) https://doi.org/10.1117/12.2238420
Event: SPIE Nanoscience + Engineering, 2016, San Diego, California, United States

Abstract

Electromagnetic (EM) waves propagating through an inhomogeneous medium inevitably scatter whenever the medium’s electromagnetic properties change on the scale of a single wavelength. This fundamental phenomenon constrains how optical structures are designed and interfaced with each other. Recent theoretical work indicates that electromagnetic structures collectively known as photonic topological insulators (PTIs) can be employed to overcome this fundamental limitation, thereby paving the way for ultra-compact photonic structures that no longer have to be wavelength-scale smooth. I will review some of the recent developments in the field of topological photonics and discuss several novel directions. Those include the first experimental realization of the topologically robust (i.e. reflections- and interference-free) delay line that enables nearly-arbitrary engineering of the optical phase along the light’s path. Novel concepts such as all-dielectric PTIs that emulate the valley degree of freedom, as well as topologically protected high-Q cavities will also be discussed.

Conference Presentation

View presentation recording on the SPIE Digital Library: http://dx.doi.org/10.1117/12.2238420.5159519977001

Citation Download Citation

Gennady B. Shvets "Photonic topological insulators and their applications: from delay lines to reflections-free resonators (Conference Presentation)", Proc. SPIE 9920, Active Photonic Materials VIII, 99201D (9 November 2016); https://doi.org/10.1117/12.2238420

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KEYWORDS

Dielectrics

Electromagnetism

Resonators

Optical design

Optical engineering

Radio propagation

Structural design

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