Title :
Fiberoptic evanescent wave spectroscopy in water at ppm sensitivity with a tunable quantum cascade laser
Author :
De Naurois, G.M. ; Gabay, I. ; Katzir, A. ; Capasso, F.
Author_Institution :
Sch. of Eng. & Appl. Sci., Harvard Univ., Cambridge, MA, USA
Abstract :
We present in water chemical spectroscopy by the use of a AgClBr fiber and a tunable mid-IR Quantum Cascade Laser source (QCL. We show detection of ppm concentration of ethanol in water.
Keywords :
chemical sensors; fibre optic sensors; laser tuning; organic compounds; quantum cascade lasers; silver compounds; spectrochemical analysis; water; AgClBr; AgClBr fiber; QCL; ethanol; fiber-optic evanescent wave spectroscopy; ppm concentration; ppm sensitivity; tunable midinfrared quantum cascade laser source; water chemical spectroscopy; Arrays; Chemicals; Ethanol; Optical fiber amplifiers; Optical fiber dispersion; Optical fiber sensors; Quantum cascade lasers;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
