Sushil Kumar, Lehigh University (IMAGE)
Caption
Sushil Kumar pursues research in terahertz and mid-infrared photonics with quantum-cascade lasers and detectors and nanostructured intersubband semiconductor devices. Currently, he is engaged in projects to develop optoelectronic devices (both light emitters and detectors) based on semiconductor heterostructures in GaAs, InP, and GaN based material systems, which operate at far-infrared and mid-infrared frequencies.
Sushil's work is at the forefront of terahertz semiconductor 'quantum-cascade' laser technology, and has posted world-record results for high-temperature and high-power operation of such lasers. He has published his research in journals such as Nature Physics, Nature Photonics, Physical Review, and Applied Physics Letters. He seeks to also develop devices that target potential applications in chemical and biological sensing, spectroscopy, and imaging such as sensing for detection of explosives and drugs in packaging, imaging for disease diagnosis, quality control in pharmaceutical industry, remote-sensing in astronomy to understand star and galaxy formation among many others.
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Lehigh University
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