PRECISE Seminar: Communication and Sensing with Laser Light

PRECISE Seminar: Communication and Sensing with Laser Light
Fri, October 27, 2023 @ 10:00am EDT
Levine Hall - Room 307
3330 Walnut Street
Philadelphia, PA 19104
Xia Zhou, Ph.D.
Associate Professor
Department of Computer Science
Columbia University

The physical properties of laser light make it a perfect medium for a plethora of applications. Examples include high-bandwidth data communication thanks to its fast modulation speed, efficient power delivery given its high energy density, and fine-grained human sensing and object tracking because of its nanometer-level wavelength. Despite its potential, laser light still faces numerous challenges in emergent mobile applications, given its high directionality, sensitivity to environmental dynamics, and constraints in laser hardware.  

In this talk, I will describe our effort of realizing robust communication and sensing with laser light for mobile applications. I will begin with realizing robust air-water communication and sensing with laser light. The ability to communicate and sense across the air-water boundary is essential for efficient exploration and monitoring of the underwater world. I will present our systems to allow an aerial drone to communicate with and locate underwater robots. I will also introduce our latest work Lasertag that overcomes laser's high directionality to enable laser tethering with highly mobile targets using portable hardware. Finally, I will overview our years-long endeavor of noninvasive glucose sensing with laser light and conclude with future work.

Speaker Bio

Xia Zhou is an Associate Professor in the Department of Computer Science at Columbia University, where she directs the Mobile X laboratory. Before joining Columbia in 2022, she was a faculty member in the Department of Computer Science at Dartmouth College. Her research interests lie broadly in mobile computing with recent focuses on light based communication and sensing, mobile sensing, and human-computer interactions. She is a recipient of the Presidential Early Career Award (PECASE) in 2019, SIGMOBILE RockStar Award in 2019, the Karen E. Wetterhahn Memorial Award for Distinguished Creative and Scholarly Achievement in 2018 and named as N2Women: Rising Stars in Networking and Communication in 2017. She has also won the Sloan Research Fellowship in 2017, NSF CAREER Award in 2016, and Google Faculty Research Award in 2014. She received her PhD at UC Santa Barbara in 2013 and MS at Peking University in 2007.