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Pallab Bhattacharya receives Welker Award at ISCS 2010

The Welker Award is given to people who have achieved exceptional progress in the field of opto-semiconductors.| Short Read
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IMAGE:  Pallab Bhattacharya

At the 37th International Symposium on Compound Semiconductors (ISCS 2010) in Takamatsu, Japan, this year’s Welker Award (for exceptional research conducted in the field of compound semiconductors) was conferred on professor Pallab K. Bhattacharya of the University of Michigan for his pioneering work on III-V based photonic devices.

With more than 500 publications in the course of his career, Bhattacharya research in electronics and optoelectronics has included ‘outstanding progress’ in optoelectronic integrated circuits (OEIC), quantum dot lasers and infrared photodetectors based on his expertise in semiconductor processing technology. The award acknowledges Bhattacharya’s ‘research accomplishments and his position as one of the most important opinion leaders in the field of III-V compound semiconductors’.

Established by Germany’s Siemens to honor the ‘father of III-V semiconductors’ Heinrich Welker, the prize was first awarded in 1976. Osram of Munich, Germany has sponsored this award for several years. “For Osram as one of the leading manufacturers of optoelectronic components, encouraging research in this field is especially important,” said Berit Wessler, in charge of the strategic technology cooperation at Osram as she presented the award. “The Welker Award is given to people who have achieved exceptional progress in the field of opto-semiconductors.”

Pallab Bhattacharya
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The electrons absorb laser light and set up “momentum combs” (the hills) spanning the energy valleys within the material (the red line). When the electrons have an energy allowed by the quantum mechanical structure of the material—and also touch the edge of the valley—they emit light. This is why some teeth of the combs are bright and some are dark. By measuring the emitted light and precisely locating its source, the research mapped out the energy valleys in a 2D crystal of tungsten diselenide. Credit: Markus Borsch, Quantum Science Theory Lab, University of Michigan.

Mapping quantum structures with light to unlock their capabilities

Rather than installing new “2D” semiconductors in devices to see what they can do, this new method puts them through their paces with lasers and light detectors. | Medium Read