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Research on Opto Thermo Electronic Devices
Our group studies mutual interaction of heat, light and electricity in nano and microscale materials and devices. We study applications in which this mutual interaction is used to improve device or circuit performance for communication, computing or energy conversion application. For example, we have designed micro refrigerators on a chip that could be used to remove hot spot in microprocessor chips. We are also working on internally cooled semiconductor lasers. We have developed novel AC imaging techniques that could provide for example thermal maps of active devices with submicron spatial resolution. In related projects, we are investigating optoelectronic and thermoelectric properties of heterostructure nanowires and the design of low chirp, narrow linewidth and widely tunable passive microring-coupled lasers.
Nice Therminic Conference 2006
Research Projects:
Quantum Electronics Group establishes Thermal Characterization Lab at NASA Ames Research Center
Electrical Nanoscale Transport in Carbon Nanofibers
Hybrid solid-state/liquid cooling
Transient Thermoreflectance Imaging
Direct Thermal to Electric Energy Conversion
Microrefrigerators on a Chip, Heterostructure Integrated Thermionic Coolers
Bipolar Peltier Effect and Internal Cooling of Semiconductor Lasers
AC Imaging and Thermal Imaging
Microring Resonator Coupled Lasers
Electron Vortices in Semiconductor Devices