Roger J. Zemp

TL;DR: A new set of near orthogonal codes which are called Hadamard Aperiodic Interval (HAPI) codes are presented and their utility for parallel multi-transmitter synthetic aperture imaging is demonstrated and high-quality images are presented demonstrating image quality and signal-to-noise ratio improvements over multiple flash angle imaging and synthetic aperture Imaging methods for linear arrays.

TL;DR: In this paper, a novel imaging technique is proposed to visualize phase change and destruction events in nanodroplets and lipid-stabilized microbubbles, respectively, taking advantage of software beamforming and postprocessing on a Verasonics system to create a series of two dimensional B-scan images before and after an excitation pulse from a high-intensity focused ultrasound transducer.

TL;DR: In this paper, the authors investigated a PA methodology using pulsed fiber laser sources as excitation laser source combined with lock-in amplification technology, and they showed that the signal-to-noise ratio (SNR) obtained with frequency domain PA imaging is significantly more sensitive than that obtained using time-domain PA imaging when the laser pulse repetition rate (PRR) matches the bandwidth of ultrasound transducer.

TL;DR: In this article, the authors show that US beamformers typical in commercial systems can be adapted for use in photoacoustic imaging by adjustment of c, and some image coordinate remapping.

TL;DR: It is hypothesized that photoacoustic imaging, which has improved depth-toresolution ratio, could be useful for visualizing MelA-expressing bacteria since MelA is a bacterial tyrosinase homologue involved in melanin production.