Welcome to RAM Lab
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 and millimeter-wave front ends, ultrasound and sensors, power conversion, 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.
If you are interested in joining the group, please apply to UT ECE and select the Electromagnetics & Acoustics track. Prospective graduate students and postdoctoral researchers are welcome to email Prof. Lu with a CV and a brief note describing their research interests.
Ruochen Lu
ruochen@utexas.edu
Ruochen Lu is an Assistant Professor in the Department of Electrical and Computer Engineering at The University of Texas at Austin.
His research focuses on microelectromechanical systems (MEMS) that advance chip-scale acoustic and electromagnetic components for signal processing, sensing, and computing. His group develops thin-film piezoelectric platforms and RF front-end microsystems that push operating frequency and transduction efficiency while tightly integrating acoustics with electronics. Complementary directions include ultrasound transducers, multiphysics microsystems that couple acoustics with optics and magnetics, engineered nonlinearity, and applications in sensing, biomedical systems, power conversion, and quantum and optomechanical platforms.
He received the IEEE MTT-S Microwave Award in 2022, the IEEE Ultrasonics Early Career Investigator Award in 2024, the NSF CAREER Award in 2024, and the 2024 Junior Faculty Excellence in Teaching Award from The University of Texas at Austin. He is an associate editor of the IEEE Journal of Microelectromechanical Systems, the IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, and the IEEE Journal of Microwaves.
He received the B.E. degree with honors in microelectronics from Tsinghua University in 2014, and the M.S. and Ph.D. degrees in electrical engineering from the University of Illinois Urbana-Champaign in 2017 and 2019, respectively.