Broadband single-mode optical fiber surface plasma wave chemical sensor

Andrew J.C. Tubb; Frank P. Payne; Roger Millington; C. R. Lowe

doi:10.1117/12.238797

24 April 1996 Broadband single-mode optical fiber surface plasma wave chemical sensor

Andrew J.C. Tubb, Frank P. Payne, Roger Millington, C. R. Lowe

Proceedings Volume 2676, Biomedical Sensing, Imaging, and Tracking Technologies I; (1996) https://doi.org/10.1117/12.238797
Event: Photonics West '96, 1996, San Jose, CA, United States

Abstract

We describe a new design of optical fiber surface plasma wave chemical sensor. The sensor consists of a tapered single mode optical fiber with a thin layer of silver evaporated on to the tapered section. The gradually changing diameter of the fiber along the taper results in a distributed coupling between the guided mode of the fiber and the surface plasma wave. As a result, and in contrast to conventional plasma wave sensors, coupling to the surface plasma wave occurs over a broad spectral range, typically several hundred nm. The device shows good sensitivity to changes in the refractive index of the external environment, with refractive index changes of 10^-4 being detectable. The device is compact, simple to make, and has applications as a biochemical or immunosensor.

Citation Download Citation

Andrew J.C. Tubb, Frank P. Payne, Roger Millington, and C. R. Lowe "Broadband single-mode optical fiber surface plasma wave chemical sensor", Proc. SPIE 2676, Biomedical Sensing, Imaging, and Tracking Technologies I, (24 April 1996); https://doi.org/10.1117/12.238797

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available