On the fiber-optic chlorine sensor with enhanced sensitivity based on the study of evanescent field absorption spectroscopy

Pankaj Kumar Choudhury, Toshihiko Yoshino

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The paper deals with a fiber optic evanescent field absorption sensor that can be used for the detection of chlorine content in drinking water. The technique is based on the absorption of evanescent fields through the development of color owing to the reaction of an organic compound diethyl phenylene diamine with chlorine, which is already present in water. In the experiment, a U-shaped optical sensor probe is used because the sensitivity of the system improves due to the higher penetration depth achieved in this case. The improvement in sensitivity (in the case of U-shaped probed) is also shown experimentally.

Original languageEnglish
Pages (from-to)329-333
Number of pages5
JournalOptik
Volume115
Issue number7
Publication statusPublished - 2004
Externally publishedYes

Fingerprint

Evanescent fields
Chlorine
Absorption spectroscopy
Fiber optics
chlorine
fiber optics
absorption spectroscopy
drinking
Diamines
sensitivity
sensors
Sensors
Optical sensors
optical measuring instruments
diamines
organic compounds
Organic compounds
Potable water
Drinking Water
water

Keywords

  • Chemical sensors
  • Evanescent wave absorption
  • Fiber optic sensors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

On the fiber-optic chlorine sensor with enhanced sensitivity based on the study of evanescent field absorption spectroscopy. / Choudhury, Pankaj Kumar; Yoshino, Toshihiko.

In: Optik, Vol. 115, No. 7, 2004, p. 329-333.

Research output: Contribution to journalArticle

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