Plasmonic refractive index sensor based on vanadium dioxide nanostructures-enhanced Goos–Hänchen effects

Joelle Youssef; Aurelian Crunteanu; Flavien Beffara; Sébastien Vergnole; Georges Humbert; Shuwen Zeng

doi:10.1117/12.3016459

20 June 2024 Plasmonic refractive index sensor based on vanadium dioxide nanostructures-enhanced Goos–Hänchen effects

Joelle Youssef, Aurelian Crunteanu, Flavien Beffara, Sébastien Vergnole, Georges Humbert, Shuwen Zeng

Proceedings Volume 12999, Optical Sensing and Detection VIII; 129990P (2024) https://doi.org/10.1117/12.3016459
Event: SPIE Photonics Europe, 2024, Strasbourg, France

Abstract

Surface plasmon resonance detections based on phase changes have demonstrated superior sensitivities over the intensity, spectral and angular methods due to the singularity effect (abrupt change of phase value) observed at resonance. The Goos–Hänchen effect, a higher first order derivative of the phase, can be observable as a lateral displacement of the reflected wave at total internal reflection and magnified by the surface plasmons. The GH sensitivity can be further improved through the addition of a phase change material nanolayer beneath the gold. Vanadium dioxide (VO2) belongs to the family of phase change materials that exhibit reversible insulator-metal behavior when heated above 68℃. Adding a thin layer of VO2 below the metal proved to theoretically enhance the sensitivity of a conventional gold-based surface plasmon biosensor (up to 28 times of improvement in comparison with the bare gold configuration).

Conference Presentation

Citation Download Citation

Joelle Youssef, Aurelian Crunteanu, Flavien Beffara, Sébastien Vergnole, Georges Humbert, and Shuwen Zeng "Plasmonic refractive index sensor based on vanadium dioxide nanostructures-enhanced Goos–Hänchen effects", Proc. SPIE 12999, Optical Sensing and Detection VIII, 129990P (20 June 2024); https://doi.org/10.1117/12.3016459

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