Optischer Detektor

摘要

An optical detector (1) for use in liquid chromatography systems or capillary electrophoresis systems comprises an optically transparent detector body (12) through which an analyte channel (4) extends, a fluid containing the analyte being adapted to be guided through said analyte channel. In order to increase the detection sensitivity, the light path between a light source introducing light and an optoelectric sensor element of the liquid chromatography system or capillary electrophoresis system is constructed as a Bragg waveguide structure extending at least along a sublenght of said analyte channel (4) essentially in the channel direction. In a plane perpendicular to the Bragg grating the device contains an antiresonant reflecting optical waveguide (ARROW).