Phase interrogation of a planar integrated refractive index sensor

Galina Nemova; Andrei V. Kabashin; Raman Kashyap

doi:10.1117/12.806853

12 August 2008 Phase interrogation of a planar integrated refractive index sensor

Galina Nemova, Andrei V. Kabashin, Raman Kashyap

Proceedings Volume 7099, Photonics North 2008; 709926 (2008) https://doi.org/10.1117/12.806853
Event: Photonics North 2008, 2008, Montréal, Canada

Abstract

A novel theoretical scheme is presented for a surface plasmon-polariton (SPP) planar refractive index sensor based on one of the simplest integrated optical devices available, the Mach-Zehnder interferometer (MZI), to monitor relative phase variations in waveguides. An SPP is excited with the Bragg grating imprinted into core and buffer layers of one of the arms of the MZI. The main principle of operation of this device is based on the large phase change of the waveguide mode transmitted through the grating during the SPP excitation caused by the change in the refractive index of the sensed layer in contact with the SPP supporting metal layer.

Citation Download Citation

Galina Nemova, Andrei V. Kabashin, and Raman Kashyap "Phase interrogation of a planar integrated refractive index sensor", Proc. SPIE 7099, Photonics North 2008, 709926 (12 August 2008); https://doi.org/10.1117/12.806853

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