Spatial filtering with surface plasmon resonance systems

A. K. Ghosh; V. Siddharth; M. Bhagat; S. Aggarwal; P. Anurag; M. Jain

doi:10.1117/12.735446

20 September 2007 Spatial filtering with surface plasmon resonance systems

A. K. Ghosh, V. Siddharth, M. Bhagat, S. Aggarwal, P. Anurag, M. Jain

Proceedings Volume 6695, Optics and Photonics for Information Processing; 669506 (2007) https://doi.org/10.1117/12.735446
Event: Optical Engineering + Applications, 2007, San Diego, California, United States

Abstract

Surface plasmon resonance based sensors are most useful in measuring the refractive indices of biochemicals. In such sensors a beam of light obliquely incident at an interface of glass and metallic thin film excites resonant plasmon waves in the metal if the angle of incidence or the wavelength is selected properly. The resonance conditions are changed by the refractive indices of any material in contact with the metal film. When resonance occurs the light beam is absorbed strongly. We can easily show that the phenomenon of surface plasmon resonance in such a system acts as a high quality spatial notch or band rejection filter.

Citation Download Citation

A. K. Ghosh, V. Siddharth, M. Bhagat, S. Aggarwal, P. Anurag, and M. Jain "Spatial filtering with surface plasmon resonance systems", Proc. SPIE 6695, Optics and Photonics for Information Processing, 669506 (20 September 2007); https://doi.org/10.1117/12.735446

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