A broadband optical pH sensor using upconversion luminescence
K. Suresh, Aseefhali Bankapur, Santhosh Chidangil, Harishkumar Madhyastha, Kentaro Sakai, Sajan D. George
Abstract
A non-contact optical pH and temperature sensor of the surrounding fluid medium based on the luminescence of an optically trapped single upconversion nanoparticle inside a microfluidic channel.
Topics & Concepts
Materials scienceLuminescencePhoton upconversionBroadbandOptoelectronicsNanoparticleOpticsNanotechnologyPhysicsAnalytical Chemistry and SensorsLuminescence Properties of Advanced MaterialsLuminescence and Fluorescent Materials