Surface enhanced infrared absorption by nanoantenna on chalcogenide glass substrates

In recent years, nanowires have been proven efficient to enhanced IR absorption of molecules and opened prospects of new ultrasensitive IR sensors. The development of integrated components requires the use of special IR glasses such as chalcogenide or silver halide glasses. In this study, we report...

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Bibliographic Details
Published in:Applied physics letters 2015-02, Vol.106 (7)
Main Authors: Verger, Frédéric, Colas, Florent, Sire, Olivier, Shen, Hong, Rinnert, Emmanuel, Boukerma, Kada, Nazabal, Virgine, Boussard-Plédel, Catherine, Bureau, Bruno, Toury, Timothée, de la Chapelle, Marc Lamy, Compère, Chantal
Format: Article
Language:English
Subjects:
Applied physics
Chalcogenides
Glass substrates
Infrared absorption
Infrared radiation
Nanoantennas
Nanowires
Nitrophenol
Surface chemistry
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Summary:In recent years, nanowires have been proven efficient to enhanced IR absorption of molecules and opened prospects of new ultrasensitive IR sensors. The development of integrated components requires the use of special IR glasses such as chalcogenide or silver halide glasses. In this study, we report the fabrication of a surface enhanced IR absorption substrate composed of nanowires deposited onto a chalcogenide glass slide. It enabled us to detect 4-nitrophenol at the femtomolar level and enhancement factor close to 106 was calculated.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.4913308