Probing thermal radiation of single or a small number of plasmonic nano-antennas

Loubnan Abou Hamdan; Valentina Krachmalnicoff; Riad Haïdar; Patrick Bouchon; Yannick De Wilde

doi:10.1117/12.2594091

1 August 2021 Probing thermal radiation of single or a small number of plasmonic nano-antennas

Loubnan Abou Hamdan, Valentina Krachmalnicoff, Riad Haïdar, Patrick Bouchon, Yannick De Wilde

Proceedings Volume 11797, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIX; 117971V (2021) https://doi.org/10.1117/12.2594091
Event: SPIE Nanoscience + Engineering, 2021, San Diego, California, United States

Abstract

The electromagnetic modes of a sub-wavelength sized antenna can be excited both optically and through thermal fluctuations. When dealing with individual or a small number of nano-antennas, highly sensitive techniques, such as thermal radiation scanning tunneling microscopy, and infrared spatial modulation spectroscopy, are required in order to extract the very weak emitted thermal radiation. Using these techniques, we have been able to characterize the thermal emission of a single pair of sub-λ metal-insulator-metal antennas separated by a nanometric gap. It is found that the various hybrid modes of a single antenna pair can be simultaneously excited by thermal fluctuations, an essentially incoherent process arising from fluctuating thermal currents. The effect of hybrid plasmonic modes on the resonant behavior of the considered antenna system may guide future efforts for realizing tunable optical and thermal structures made up of a small number of antennas, for various applications.

Conference Presentation

Citation Download Citation

Loubnan Abou Hamdan, Valentina Krachmalnicoff, Riad Haïdar, Patrick Bouchon, and Yannick De Wilde "Probing thermal radiation of single or a small number of plasmonic nano-antennas", Proc. SPIE 11797, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIX, 117971V (1 August 2021); https://doi.org/10.1117/12.2594091

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