A Low-cost Fresnel Lens Fluorometer to Detect Fecal Contamination in Drinking Water in Realtime

Sanket Bohora, Kezheng Li, Prashant Waiba, Sishir Gautam, Augusto Martins, Ricardo A. Rodrigues, Peter Kikstra, Marcel van der Horst, Emiliano R. Martins, Thomas F. Krauss, Ashim Dhakal

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review


We report the detection of tryptophan at sub-ppb levels for a fluorometer based on Fresnel lenses and low-cost electronics. These fluorometers can be used to detect fecal contamination in drinking water, indicated by tryptophan-like fluorescence.
Original languageEnglish
Title of host publicationProceedings Conference on Lasers and Electro-Optics 2022
Place of PublicationWashington, DC
PublisherOptica Publishing Group
Number of pages2
Publication statusPublished - 15 May 2022
EventConference on Lasers and Electro-Optics 2022: Applications and Technology - San Jose, United States
Duration: 15 May 202220 May 2022

Publication series

NameTechnical Digest Series


ConferenceConference on Lasers and Electro-Optics 2022
Abbreviated titleCLEO: 2022
Country/TerritoryUnited States
CitySan Jose

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