Abstract:

Semiconductor quantum structures have not only enabled discoveries of new phenomena but also realizations of novel photonic devices. In this talk I will introduce those devices that I have been working on and discuss my future plans. The first one is the, by now, well-established quantum-well infrared photodetector (QWIP). Here I will discuss its potential for applications in laboratories and environmental sensing in the infrared (IR) spectrum. I will also discuss its integration with light emitting diode for pixelless upconversion imaging. Quantum cascade laser (QCL) is another emerging and promising device. I will review the current OCL status and our record-holding three-well resonant-phonon design for the terahertz (THz) region. Together with QWIPs, QCLs form a very promising technology base for sensing.
 
 
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