Photoacoustic image quality improvement from a single cell low frequency pmut

K Roy, A Paramanik, S Paul, A Kalyan, E Sarkar… - arXiv preprint arXiv …, 2022 - arxiv.org
Photoacoustic image (PAI) quality improvement using a low frequency piezoelectric
micromachined ultrasound transducer (PMUT) having the fundamental resonant frequency 1 …

Image quality enhancement of PMUT-based photoacoustic imaging

A Paramanick, K Roy, D Samanta… - … and Sensing 2023, 2023 - spiedigitallibrary.org
Photoacoustic imaging (PAI) is now a very promising imaging technique that provides image
with sufficient depth, good resolution, and optical contrast. A conventional PAI system is …

Pmut-powered photoacoustic detection: Revolutionizing microfluidic concentration measurements

K Roy, A Kumar, V Shastri, I Munjal… - IEEE Transactions …, 2024 - ieeexplore.ieee.org
This report introduces a novel optofluidic platform based on piezo-microelectromechanical
systems (MEMS) technology, capable of identifying subtle variations in the fluid …

Manipulating liquid metal flow for creating standalone structures with micro-and nano-scale features in a single step

V Shastri, S Talukder, K Roy, P Kumar… - Nanotechnology, 2022 - iopscience.iop.org
Standalone structures with periodic surface undulations or ripples can be spontaneously
created upon flowing a liquid metal, eg Ga, over a metallic film, eg Pt, Au, etc, through a …

Electric current-assisted manipulation of liquid metals using a stylus at micro-and nano-scales

V Shastri, S Majumder, A Ashok, K Roy… - …, 2022 - iopscience.iop.org
A novel methodology, based on wetting and electromigration, for transporting liquid metal,
over long distances, at micro-and nano-scale using a stylus is reported. The mechanism is …