Close

Search

Search Menu
Photonics Media Photonics Buyers' Guide Photonics EDU Photonics Spectra BioPhotonics EuroPhotonics Industrial Photonics Photonics Showcase Photonics ProdSpec Photonics Handbook
More News
SPECIAL ANNOUNCEMENT
2016 Photonics Buyers' Guide Clearance! – Use Coupon Code FC16 to save 60%!
share
Email Facebook Twitter Google+ LinkedIn Comments

Sensor Relies on 'Time-of-Flight' Spectroscopy

Photonics Spectra
Aug 1998
Gary Hieftje and Radislav Potyrailo of Indiana University in Bloomington have designed a "distributed" sensor that uses optical time-of-flight spectroscopy.
The scientists operate the sensor by sending a very short pulse of light down the length of the fiber. (Currently in prototype form, the fiber measures 48 m.)
When light interacts with an analyte, fluorescence propagates back down the fiber. Taking into account the velocity the light is traveling and the fiber's refractive index, scientists can determine where analytes are located along the fiber.


Comments
Terms & Conditions Privacy Policy About Us Contact Us
back to top

Facebook Twitter Instagram LinkedIn YouTube RSS
©2016 Photonics Media
x Subscribe to Photonics Spectra magazine - FREE!