Controlling topological edge states and their radiation in photonic crystals via synthetic strain engineering

René Barczyk; Sonakshi Arora; Kobus Kuipers; Ewold Verhagen

doi:10.1117/12.2647840

17 March 2023 Controlling topological edge states and their radiation in photonic crystals via synthetic strain engineering

René Barczyk, Sonakshi Arora, Kobus Kuipers, Ewold Verhagen

Author Affiliations +

Proceedings Volume PC12432, High Contrast Metastructures XII; PC1243207 (2023) https://doi.org/10.1117/12.2647840
Event: SPIE OPTO, 2023, San Francisco, California, United States

Abstract

The insensitivity of photons to magnetic fields calls for symmetry-based approaches in the design of photonic topological insulators. We experimentally demonstrate the realization of pseudomagnetic fields in deformed photonic crystals, and investigate the resulting photonic Landau-levels and guided topological states. Akin to strained graphene sheets, deformations (i.e., designed strain) in photonic crystals generate synthetic gauge fields for photons, leading to localization at flat bands and new types of topologically protected edge states at the boundaries of strained photonic crystals. We reveal that tailoring these gauge fields via strain-engineering yields new control over light dispersion, localization, and allows broadband minimization of radiation losses.

Conference Presentation

Citation Download Citation

René Barczyk, Sonakshi Arora, Kobus Kuipers, and Ewold Verhagen "Controlling topological edge states and their radiation in photonic crystals via synthetic strain engineering", Proc. SPIE PC12432, High Contrast Metastructures XII, PC1243207 (17 March 2023); https://doi.org/10.1117/12.2647840

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available