Self-assembled glass-based Fano resonant metasurfaces

L. Martin-Monier; T. Das Gupta; W. Yan; T. D. Nguyen; A. Page; F. Sorin

doi:10.1117/12.2546112

28 February 2020 Self-assembled glass-based Fano resonant metasurfaces

L. Martin-Monier, T. Das Gupta, W. Yan, T. D. Nguyen, A. Page, F. Sorin

Proceedings Volume 11292, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII; 112920D (2020) https://doi.org/10.1117/12.2546112
Event: SPIE OPTO, 2020, San Francisco, California, United States

Abstract

Dielectric metasurfaces require the integration of large index contrast materials with accurate control over position and size for high optical efficiency. Their fabrication usually relies on well-established lithographic techniques. While lithography bears considerable advantages in terms of reproducibility and accuracy, it remains a time and cost intensive process that remains restricted in terms of materials, and difficult to scale up to large-area and non-rigid substrates. Chalcogenide glasses constitute a class of materials particularly suited for metasurfaces, thanks to their low intrinsic losses coupled with their tunable high refractive indices. The challenges associated with the nanostructuring of glassy materials has however limited their use in nanophotonics. Here, we rely on the glass characteristic viscous properties and destabilizing Van der Waals interactions, to show the rearrangement of thin chalcogenide films into well-ordered and defect free structures at the nanoscale. In particular, we show the fabrication of arrays of a variety of chalcogenides nano-objects, both continuous and isolated, with a variety of sizes and structures, and on different, rigid, flexible and stretchable substrates. Such controlled large area arrays are shown to have strong field enhancement leading to Fano resonances, which finds applications as biosensor and second harmonic generation.

Citation Download Citation

L. Martin-Monier, T. Das Gupta, W. Yan, T. D. Nguyen, A. Page, and F. Sorin "Self-assembled glass-based Fano resonant metasurfaces", Proc. SPIE 11292, Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XIII, 112920D (28 February 2020); https://doi.org/10.1117/12.2546112

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