Welcome to RAM Lab
Postdoctoral openings: The RAM Lab is currently recruiting postdoctoral researchers in thin-film piezoelectric MEMS, millimeter-wave and sub-THz acoustic devices, ultrasound and sensing, and heterogeneous integration with electronic, photonic, and quantum systems. Interested candidates should email Prof. Lu with a CV, a brief description of their research background and interests, and their anticipated availability.
Prospective graduate students interested in joining the group should apply to UT ECE and select the Electromagnetics & Acoustics track. Applicants are also welcome to email Prof. Lu with a CV and a brief note describing their research interests.
The Resonant Acoustic Microsystems (RAM) Lab develops microelectromechanical systems (MEMS) for signal processing, sensing, and computing. Our research centers on thin-film piezoelectric devices and acoustic microsystems, with applications spanning microwave, millimeter-wave, and sub-THz front ends, ultrasound and sensing, power conversion, nonlinear phononics, and emerging photonic and quantum interfaces.
Sub-THz Acoustics
We develop high-frequency piezoelectric resonators, filters, and related acoustic devices in lithium niobate, lithium tantalate, and scandium aluminum nitride, extending acoustic signal processing into the millimeter-wave and sub-THz regime.
MEMS Beyond RF
We translate acoustic MEMS into ultrasound, sensing, power conversion, and nonlinear phononics, using thin-film piezoelectric platforms to realize transducers, resonators, and compact microsystems beyond traditional RF functions.
Heterogeneous Integration
We explore how acoustics interfaces with electronics, photonics, magnetics, and quantum systems through thin-film transfer, heterogeneous integration, multiphysics design, and precision RF/acoustic characterization.
Ruochen Lu
ruochen@utexas.edu
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Ruochen Lu is an Assistant Professor in the Department of Electrical and Computer Engineering at The University of Texas at Austin. He received the B.E. degree with honors in microelectronics from Tsinghua University in 2014 and the Ph.D. degree in electrical engineering from the University of Illinois Urbana-Champaign in 2019.
His research focuses on piezoelectric MEMS and acoustic microsystems for signal processing, sensing, and computing. His group develops thin-film piezoelectric resonators, filters, and RF front-end technologies spanning microwave, millimeter-wave, and sub-THz frequencies. Complementary research directions include ultrasonic transducers, nonlinear phononics, piezoelectric power conversion, and heterogeneous integration of acoustics with electronic, photonic, magnetic, and quantum systems.
He received the IEEE MTT-S Microwave Award in 2022, the IEEE Ultrasonics Early Career Investigator Award and NSF CAREER Award in 2024, and the Transducer Research Foundation Rising Star of Microsystems Award in 2026. He serves as an associate editor for IEEE JMEMS, IEEE Transactions on Ultrasonics, IEEE Journal of Microwaves, and IEEE Electron Device Letters.