Abstract
The conventional and well-established technique of fingerprint recording is to record the intensity distribution of the fingerprint through total internal reflection (TIR). The present work proposes a polarization-based non-interferometric technique based on total internal reflection for a quantitative assessment of the refractive index of the sebum associated with the fingerprint as well as its unique pattern. Although the conventional technique of TIR is employed, two polarization-shifted intensity data frames are recorded and combined to arrive at the desired result. It is expected that this additional information may yield a new dimension to forensic science.
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Das, T. (2020). Detection of Fingerprint Pattern and Refractive Index of Deposited Sebum by Using Total Internal Reflection. In: Kadambi, G., Kumar, P., Palade, V. (eds) Emerging Trends in Photonics, Signal Processing and Communication Engineering. Lecture Notes in Electrical Engineering, vol 649. Springer, Singapore. https://doi.org/10.1007/978-981-15-3477-5_3
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DOI: https://doi.org/10.1007/978-981-15-3477-5_3
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Online ISBN: 978-981-15-3477-5
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