Title :
Performance evaluation of admittance loci based design of a ceramic prism based plasmonic structure
Author :
Brahmachari, Kaushik ; Ray, Mina
Author_Institution :
Dept. of Appl. Opt. & Photonics, Univ. of Calcutta, Kolkata, India
fDate :
Jan. 31 2014-Feb. 2 2014
Abstract :
A theoretical study based on the use of admittance loci method in design of a plasmonic structure using transparent ceramic prism material and some other types of prism materials has been reported in this paper. A Kretschmann-Raether type prism-based plasmonic structure consisting of a prism, gold (Au) metal film and dielectric sample has been investigated with the use of admittance loci method in Attenuated Total Internal Reflection (ATIR) mode. High refractive index of ceramic material along with high detection accuracy offers certain advantages for sensing applications. Admittance loci plots, surface plasmon sensing curves along with surface plasmon resonance angle, angular shift and detection accuracy plots using transparent ceramic prism material has been compared with those for other types of prism materials in order to study their effects on surface plasmon sensing at 670 nm wavelength.
Keywords :
angular measurement; ceramics; dielectric materials; metallic thin films; optical films; optical materials; optical prisms; optical sensors; performance evaluation; plasmonics; refractive index measurement; surface plasmons; thin film sensors; ATIR mode; Kretschmann-Raether type prism-based plasmonic structure; admittance loci method; angular shift; attenuated total internal reflection mode; dielectric sample; high refractive index; metal film; performance evaluation; plasmonic structure design; surface plasmon resonance angle; surface plasmon sensing curve; transparent ceramic prism material design; wavelength 670 nm; Admittance; Ceramics; Films; Metals; Plasmons; Refractive index; Admittance loci method; ceramic prism material; plasmonic structure; thin metal film;
Conference_Titel :
Control, Instrumentation, Energy and Communication (CIEC), 2014 International Conference on
Conference_Location :
Calcutta
DOI :
10.1109/CIEC.2014.6959058
