Long-Range High-Resolution Imaging With Silicon-on-Nothing ScAlN pMUTs

M Sarafianou, DSW Choong, DSH Chen… - IEEE Sensors …, 2023 - ieeexplore.ieee.org
This work demonstrates the imaging capabilities of a silicon-on-nothing (SON) ScAlN
piezoelectric micromachined ultrasonic transducer (pMUT) array by a method of transmit …

Preliminary Evaluation of Multi-Angle Spatial Compound Imaging with pMUTs

M Sarafianou, G Giubilei, DSW Choong… - 2024 IEEE …, 2024 - ieeexplore.ieee.org
This work investigates the feasibility of a multi-angle image compounding scheme using a
linear array of pMUTs towards clutter attenuation and speckle artifact suppression. This is …

DC-Bias Effects on Sputtered PZT pMUTs with High Transmit and Receive Sensitivities in Immersion for Imaging applications

M Sarafianou, DSW Choong, DJ Goh… - 2023 IEEE …, 2023 - ieeexplore.ieee.org
This work reports a 7.5 MHz sputtered Lead Zirconate Titanate (PZT) piezoelectric
micromachined ultrasonic transducer (pMUT) array that demonstrates both strong transmit …

A Multiple Algorithm Imaging Scheme Towards In-Vitro Reconstruction Performance Benchmarking for pMUTs

RA Esteves, S Sadeghpour… - 2023 IEEE International …, 2023 - ieeexplore.ieee.org
Integrating, for the first time, a multi-algorithm imaging scheme with a 1.75 MHz pMUTs
array, this study pioneers the application and evaluation of data-dependent reconstruction …

2D Surface Reconstruction Using an air-Coupled pMUT-Based Synthetic Aperture Array

M Sarafianou, DSW Choong, DJ Goh… - 2024 IEEE …, 2024 - ieeexplore.ieee.org
This paper reports, for the first time, a synthetic aperture of pMUTs based on a hybrid Lead
Zirconate Titanate (PZT)-ScAlN pMUT arrangement for in-air 2D surface reconstruction. By …

A Feasibility Study on Underwater 2D Localization Using PZT pMUTs

M Sarafianou, DSH Chen, DSW Choong… - 2023 IEEE …, 2023 - ieeexplore.ieee.org
This work presents, for the first time, underwater 2D localization of a reflector through only
two pulse-echo measurements using a trilateration methodology with a pair of lead zirconate …

Short-Range Small-Form-Factor 2D Source Localization Using pMUT-Based Delay-Multiply-and-Sum Imaging Towards Catheter Coordination

M Sarafianou, DSW Choong, DJ Goh… - 2024 IEEE …, 2024 - ieeexplore.ieee.org
This work presents, for the first time, in-immersion source localization using an imaging
scheme with a lead zirconate titanate (PZT) piezoelectric micromachined ultrasonic …