Title :
Dark and bright surface plasmon resonances of metal meshes for mid-infrared sensing at the nanoscale
Author :
Ortolani, M. ; Limaj, O. ; D´Apuzzo, F. ; Gaspare, A. Di ; Giliberti, V. ; Leoni, R. ; Mattioli, F. ; Lupi, S.
Author_Institution :
Inst. for Photonics & Nanotechnol., Rome, Italy
Abstract :
Thin metal films with subwavelength hole arrays (meshes) have been fabricated for operation as optical sensors. Mid-infrared spectroscopy and electromagnetic simulations demonstrate that free-standing meshes are particularly suitable for sensing solid nanopollutants.
Keywords :
infrared detectors; infrared spectra; metallic thin films; nanosensors; optical sensors; pollution measurement; surface plasmon resonance; thin film sensors; bright surface plasmon resonance; dark surface plasmon resonance; electromagnetic simulations; free-standing meshes; metal meshes; midinfrared spectroscopy; nanoscale midinfrared sensing; optical sensors; solid nanopollutant sensing; subwavelength hole arrays; thin metal films; Films; Metals; Optical surface waves; Plasmons; Sensors; Surface treatment; Surface waves;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2012 37th International Conference on
Conference_Location :
Wollongong, NSW
Print_ISBN :
978-1-4673-1598-2
Electronic_ISBN :
2162-2027
DOI :
10.1109/IRMMW-THz.2012.6380279
