Generation of Lossy Mode Resonances With Absorbing Thin-Films

• Published in: Journal of lightwave technology Vol. 28; no. 23; pp. 3351 - 3357
• Main Authors: Del Villar, Ignacio, Zamarreño, Carlos R, Hernaez, Miguel, Arregui, Francisco J, Matias, Ignacio R
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01-12-2010; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Absorption; Applied sciences; Circuit properties; Couplings; Electric, optical and optoelectronic circuits; electromagnetic theory; Electronics; Exact sciences and technology; Indium tin oxide; indium tin oxide (ITO); Integrated optics. Optical fibers and wave guides; Materials selection; Optical and optoelectronic circuits; Optimization; Plasmons; Reflectivity; Refractive index; Sensing devices; Silicon compounds; Silicon dioxide; Thin films; Integrated optics; Electromagnetism; Measurement sensor; electromagnetic theory; Lossy medium; Surface plasmon; Coatings; Coated material; Optimal design; Thin film; Thin films; indium tin oxide (ITO); Optical waveguide; Absorbing thin film
• ISSN: 0733-8724; 1558-2213
• DOI: 10.1109/JLT.2010.2082492

The generation of lossy mode resonances with absorbing thin-films is analyzed with electromagnetic theory. The main differences with surface plasmon resonances are presented and some rules are given towards an optimum design of sensing devices based on absorbing thin-film coated silica substrates. The material selected for the absorbing thin-film is ITO, which is adequate for supporting both surface plasmon resonances and lossy mode resonances.