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UC Davis
     
 
Dr. Tristan Rocheleau

Electrical Engineering
Advisor: Prof. Nguyen
(510) 643-9825

BIOGRAPHY
I received my Bachelors of Science in Physics from the University of California, Santa Barbara with high honors in 2005. In 2011, I received my Ph.D. in Physics from Cornell University for work on cooling mesoscopic mechanical resonators towards their quantum ground state. Currently, I am working with Clark T.-C. Nguyen in the Electrical Engineering and Computer Science department at the University of California, Berkeley on a number of projects related to Radio-Frequency MicroElectroMechanical Systems (RF-MEMS).

Capacitive-Gap Micromechanical Local Oscillator At GHz Frequencies [BPN630]
This project aims to build a MEMS-based on-chip reference oscillator at GHz frequencies. By constructing an array of capacitive transduced micromechanical resonators with extremely small capacitive gaps and high mechanical Q, in conjunction with a low-power CMOS ASIC amplifier, it becomes possible to achieve self-sustained oscillation in a die-level system. The high mechanical Q of these devices, which can reach an extraordinary >40,000 at frequencies up to 3GHz, allows the possibility for unprecedented phase noise performance. Many applications for such high-frequency, low phase-noise oscillators exist, ranging from prosaic mobile communications oscillators, to more exotic uses such as reference clocks for chip-scale atomic clocks.


Current Active Projects:
BPN359
BPN651
BPN676
BPN766
BPN767
 

     Last Updated: Thu 2014-Jan-09 12:40:20

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