Ultrafast Bessel Beam Induced Finger-like Silver Nanostructures for Trace-level Picric Acid Sensing

Dipanjan Banerjee; Reshma Beeram; Venugopal Rao Soma

doi:10.1364/LACSEA.2022.LM2B.5

Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES)
Technical Digest Series (Optica Publishing Group, 2022),
paper LM2B.5
•https://doi.org/10.1364/LACSEA.2022.LM2B.5

Ultrafast Bessel Beam Induced Finger-like Silver Nanostructures for Trace-level Picric Acid Sensing

Dipanjan Banerjee, Reshma Beeram, and Venugopal Rao Soma

Laser Applications to Chemical, Security and Environmental Analysis 2022

Vancouver, British Columbia Canada
11–15 July 2022
ISBN: 978-1-957171-10-4

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Ultrafast Laser Applications (LM2B)

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D. Banerjee, R. Beeram, and V. R. Soma, "Ultrafast Bessel Beam Induced Finger-like Silver Nanostructures for Trace-level Picric Acid Sensing," in Optical Sensors and Sensing Congress 2022 (AIS, LACSEA, Sensors, ES), Technical Digest Series (Optica Publishing Group, 2022), paper LM2B.5.

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Abstract

We fabricated quasi-periodic arrays of finger-like three-dimensional nanostructures on a silver target by engaging picosecond Bessel laser pulses. Subsequently, trace-level, real-time sensing of an explosive molecule of picric acid was achieved using SERS technique.

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