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PIYUSH SHRIVASTAVA1, SUBHASHISH TIWARI2, ANKUR SAHARIA1,* , GHANSHYAM SINGH3, MANISH TIWARI1,*
In this work, a sensing technique based on multimode graded index optical fiber in combination with 3-D printed sensing channel for the detection of different concentrations of Isopropyl alcohol (IPA) has been studied experimentally. This work demonstrates an optical fiber-based approach for sensing the IPA concentration in distilled water. This method is based on a real-time sensing mechanism and provides a precise detection of isopropyl alcohol. The molar concentration of isopropyl alcohol dissolved in 20 ml of distilled water is varied and the corresponding change in output voltage is noticed. The sensing is carried out by varying input power of the laser source, coupled to the optical fiber. A multimoded optical fiber having sensing region is used to perform sensing experiments. It is found that the experimental and theoretical values of absorbance and power loss due to Isopropyple alcohol are in close agreement with each other.
Isopropyl alcohol, Multimode fiber, Optical sensor.
PIYUSH SHRIVASTAVA, SUBHASHISH TIWARI, ANKUR SAHARIA, GHANSHYAM SINGH, MANISH TIWARI, An experimental demonstration of all-optical Isopropyl alcohol sensor for biomedical applications, Optoelectronics and Advanced Materials - Rapid Communications, 19, 7-8, July-August 2025, pp.337-343 (2025).
Submitted at: Jan. 29, 2025
Accepted at: Aug. 4, 2025
Optoelectronics and Advanced Materials - Rapid Communications
(2024): Impact Factor = 0.4 - Journal Citation Reports (Clarivate Analytics, 2025)
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