Spectral sensor of the ethanol concentration in water based on photodiode optoelectronic chromatic dispersion

Egor Liokumovitch, Ziv Glasser, Shmuel Sternklar

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Optoelectronic chromatic dispersion (OED) of a PN-type germanium photodiode is used for spectral sensing of ethanol concentration in water. A concentration sensitivity of 70 ppm is achieved. Spectral sensors based on OED in PN-type photodiodes can serve as low-cost on-chip devices for optical spectroscopy.

Original languageEnglish
Pages (from-to)5076-5079
Number of pages4
JournalOptics Letters
Volume47
Issue number19
DOIs
StatePublished - 1 Oct 2022

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