MyJournals Home  

RSS FeedsSensors, Vol. 19, Pages 405: The Sensitivity of Grating-Based SPR Sensors with Wavelength Interrogation (Sensors)

 
 

19 january 2019 14:00:42

 
Sensors, Vol. 19, Pages 405: The Sensitivity of Grating-Based SPR Sensors with Wavelength Interrogation (Sensors)
 




In this paper, we derive the analytical expression for the sensitivity of grating-based surface plasmon resonance (SPR) sensors working in wavelength interrogation. The theoretical analysis shows that the sensitivity increases with increasing wavelength and is saturated beyond a certain wavelength for Au and Ag gratings, while it is almost constant for Al gratings in the wavelength range of 500 to 1000 nm. More importantly, the grating period (P) and the diffraction order (m) dominate the value of sensitivity. Higher sensitivity is possible for SPR sensors with a larger grating period and lower diffraction order. At long wavelengths, a simple expression of P/|m| can be used to estimate the sensor sensitivity. Moreover, we perform experimental measurements of the sensitivity of an SPR sensor based on an Al grating to confirm the theoretical calculations.


Del.icio.us Digg Facebook Google StumbleUpon Twitter
 
19 viewsCategory: Chemistry, Physics
 
Sensors, Vol. 19, Pages 406: Low-Cost, High-Performance Fiber Optic Fabry-Perot Sensor for Ultrasonic Wave Detection (Sensors)
Sensors, Vol. 19, Pages 404: A Fiber Optic Ultrasonic Sensing System for High Temperature Monitoring Using Optically Generated Ultrasonic Waves (Sensors)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Physics

Use these buttons to bookmark us:
Del.icio.us Digg Facebook Google StumbleUpon Twitter


Valid HTML 4.01 Transitional
Copyright © 2008 - 2019 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Travel Photos Nachrichten Indigonet Finances Leer Mandarijn