Title :
Optoelectrochemical transduction on planar optical waveguides
Author :
Piraud, Christophe ; Mwarania, Eustace K. ; Yao, J. ; O´Dwyer, K. ; Schiffrin, D.J. ; Wilkinson, James S.
Author_Institution :
Southampton Univ., UK
fDate :
5/1/1992 12:00:00 AM
Abstract :
Planar optical waveguides overlaid with electrochemically modulated sensing films constitute a powerful new class of chemical transducer. The effects on the modal absorption spectrum of depositing a highly absorbing electrochromic film on an optical waveguide are modeled. Theoretical and experimental results are given for such a device consisting of a lutetium biphthalocyanine film deposited on an indium tin oxide-coated potassium ion-exchanged glass waveguide, for application as a chlorine sensor
Keywords :
electrochemical analysis; electrochemistry; electrochromism; gas sensors; integrated optics; lutetium compounds; optical films; optical waveguide theory; organic compounds; Cl; InSnO; K+; absorbing electrochromic film; chemical sensors; chemical transducer; electrochemically modulated sensing films; ion-exchanged glass waveguide; light absorption; lutetium biphthalocyanine film; modal absorption spectrum; optochemical transduction; planar optical waveguides; Absorption; Chemical transducers; Electrochromism; Optical films; Optical modulation; Optical planar waveguides; Optical sensors; Optical waveguide theory; Optical waveguides; Planar waveguides;
Journal_Title :
Lightwave Technology, Journal of
