I am a Ph.D. student in SMSRC, my adviser
is Dr. Balachandran. My researches are basically focused on 2 fields: 1, Fiber
optic Bragg grating sensors. Because of its strong
anti-disturbance and excellent multiplication abilities, Bragg
grating sensors were used to serve as strain gauges in an
underwater sonar system to predict the deformation of the
system. My job in the project included fabricating the fiber optic
sensors of different wavelengths; integrating the sensors together
and testing the system and collecting data for the sponsoring
company. My present research is modeling for a MEMS resonator. Small-scale
structures (>500 micrometers in dimension) are now routinely being
fabricated. However their deformation response is not well understood. A
nonlinear effect is found in micro beam vibration when our resonator is
working near the first mode natural frequency of the beam. The purpose of my
research is to setup a model for the resonator to predict the vibration
behaviors of the micro beam. The dimensions of the micro beams vary from 10 um
to 500um and the materials that we use in fabricating the resonator are: AlGaAs,
AlAs, and GaAs.
The structure of the resonator
The MEMS resonator
The spatial
patterns observed from experimental laser vibrometer measurements
