SUB-MICRON PLASMONIC WAVEGUIDE FOR EFFICIENT SENSING OF BIO-FLUIDS | Zendy

Rik Chattopadhyay | Zendy; Rimlee Deb Roy | Zendy; Shyamal K. Bhadra | Zendy

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SUB-MICRON PLASMONIC WAVEGUIDE FOR EFFICIENT SENSING OF BIO-FLUIDS

Author(s) -

Rik Chattopadhyay,

Rimlee Deb Roy,

Shyamal K. Bhadra

Publication year - 2013

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl13052207

Subject(s) - plasmon , materials science , optoelectronics , waveguide , nanotechnology , optics , physics

A new sensor device is reported to measure the change in dielectric permittivity or refractive index of liquid samples. This novel device is extremely compact in nature and can be fabricated on a chip by integrated optical design method. The device works on change in surface plasmon (SP) amplitude to obtain permittivity values of samples adjacent to a specially designed metal-dielectric interface in a waveguide. The geometry of the interface has a distinct efiect on sensitivity of measurement. The performance of the device is analyzed, and predicted through analytical and numerical calculations.

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