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About the Laboratory

This laboratory is dedicated to the development of novel micro-sensors for nano-scale measurement.  Most of the research projects use “whispering gallery mode” (WGM) resonators for ultra-sensitive measurements with high resolution in time and space.  The dielectric resonators used are high optical quality polymeric spheres.  The measurement principle is based on the detection of extremely small sphere deformations by monitoring the corresponding optical mode (WGM) shifts.  Several photonic sensors have been developed and demonstrated in the Micro-Sensor Lab including force, strain, wall shear stress, temperature, and pressure.  Recent work has focused on the development of a micro-photonic seismometer as well as electric and magnetic field sensors.  Because of the extreme sensitivity of the microsphere WGM to external conditions, a wide range of applications exist ranging from medicine to defense.  


To learn more about what is happening in the SMU Micro-Sensor Laboratory click here