Claire Gmachl, Princeton University
Professor
Princeton, New Jersey
cgmachl@princeton.edu
Office:
(609) 258-7489
Bio/Research
My research group is working on the development of new quantum devices, especially lasers, and their optimization for sensor systems and their applications in environment and health. Our special focus is currently on Quantum Cascade (QC) lasers, a novel type of semiconductor injection laser based...
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Bio/Research
My research group is working on the development of new quantum devices, especially lasers, and their optimization for sensor systems and their applications in environment and health. Our special focus is currently on Quantum Cascade (QC) lasers, a novel type of semiconductor injection laser based on electronic intersubband transitions in the conduction band of a coupled quantum well heterostructure. Quantum wells are slivers of one type of semiconductor material, just a few atomic layers thick, interleaved with another type of semiconductor (the barriers). Many performance features of the lasers, such as their power, modulation capabilities, or emission wavelength in the mid- to far-infrared, are designed into the device by choice of the thicknesses of the quantum wells and barriers. With some 500 to 1000 quantum wells and barriers in a single laser, there are endless opportunities for creativity!
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