Functionalized lateral surface coated lasers for chem-bio detection

Lynford L. Goddard, Tiziana C. Bond, Garrett D. Cole, Elaine M. Behymer

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We present a class of compact, monolithic, photonic sensors consisting of multiple section edge emitting lasers with functionalized lateral surface coatings for low level detection of chemical or biological agents. Specifically, we discuss 8μm × 250μm Pd-coated H2 sensors and configurations to reduce the minimum detection limit from 138ppm for passive sensors to 1ppm for active sensors. Compared with conventional optical H 2 sensors that use fiber gratings, surface plasmon resonances, or surface reflectance, our sensors offer the advantages of smaller size, wider dynamic range, monolithic integration of laser source and detector, and 2-D scalability to arrays of sensors that are functionalized to detect different agents.

Original languageEnglish (US)
Title of host publicationThe 6th IEEE Conference on SENSORS, IEEE SENSORS 2007
Number of pages4
StatePublished - 2007
Externally publishedYes
Event6th IEEE Conference on SENSORS, IEEE SENSORS 2007 - Atlanta, GA, United States
Duration: Oct 28 2007Oct 31 2007

Publication series

NameProceedings of IEEE Sensors


Other6th IEEE Conference on SENSORS, IEEE SENSORS 2007
CountryUnited States
CityAtlanta, GA

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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