A midinfrared mass sensor based on high quality factor surface plasmon modes was designed, fabricated, and tested by infrared spectroscopy for the detection of nanometric layers of dielectric materials. Substrate removal below a metal mesh with period of 2 mu m results in the coupling between degenerate surface plasmon modes on the two surfaces, resulting in a quality factor up to 33 for the antisymmetric mode. The presented substrateless metal mesh integrates mass sensing capability together with midinfrared spectroscopy, and is therefore of potential interest for substance-selective environmental and biomedical sensing applications (C) 2011 American Institute of Physics. [doi:10.1063/1.3559616]
Midinfrared surface plasmon sensor based on a substrateless metal mesh / Limaj, Odeta; Lupi, Stefano; F., Mattioli; R., Leoni; Ortolani, Michele. - In: APPLIED PHYSICS LETTERS. - ISSN 0003-6951. - STAMPA. - 98:9(2011), pp. 091902-091904. [10.1063/1.3559616]
Midinfrared surface plasmon sensor based on a substrateless metal mesh
LIMAJ, ODETA;LUPI, Stefano;ORTOLANI, MICHELE
2011
Abstract
A midinfrared mass sensor based on high quality factor surface plasmon modes was designed, fabricated, and tested by infrared spectroscopy for the detection of nanometric layers of dielectric materials. Substrate removal below a metal mesh with period of 2 mu m results in the coupling between degenerate surface plasmon modes on the two surfaces, resulting in a quality factor up to 33 for the antisymmetric mode. The presented substrateless metal mesh integrates mass sensing capability together with midinfrared spectroscopy, and is therefore of potential interest for substance-selective environmental and biomedical sensing applications (C) 2011 American Institute of Physics. [doi:10.1063/1.3559616]I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
