compound semiconductor news digest
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Northwestern improves QCL performance by passing 50% mark - 12 Jan, 2010
QCL performance has passed the 50 per applications including the remote sensing of is a major milestone and we continue to
cent mark in efficiency after researchers at hazardous chemicals. work to optimise the efficiency of these
Northwestern created new mid-infrared laser Mid-infrared wavelength ranges have been unique devices,” said Northwestern’s
diodes. difficult to access and new device Manijeh Razeghi, the Walter P Murphy
architectures have had to be created to professor of electrical engineering and
Compact, mid-infrared laser diodes have enable this, something the semiconductor computer science at the McCormick School
been created by researchers at industry may have played a part in. of Engineering and Applied Science.
Northwestern University which generate Northwestern researchers optimised the
more light than heat. material quality in standard compound Research is being partially funded by the
semiconductor growth equipment to Office of Naval Research, which is an
The “breakthrough” results mean that improve QCL performance. executive branch agency within the US
another step can be taken towards using Department of Defense and which reports
quantum cascade lasers (QCL) for “Passing the 50 per cent mark in efficiency to the secretary of the Navy.
Kaai, Inc. Demonstrates
Kyma Technologies Announces Key
523nm Continuous
Wave Green Laser Diode
New Hires - 7 Jan, 2010
07 Jan, 2010
Kyma Technologies, Inc., a leading supplier between The University of Erlangen-
of ultra-high purity crystalline gallium nitride Nürnberg, Germany and The University of
Kaai, Inc., a world leader in (GaN) and aluminum nitride (AlN) materials Montpellier 2, Groupe d’Etude des
commercialization of green and blue laser and related products and services, today Semiconducteurs, France.
diodes, announced today a recent announced several new hires and staffing
demonstration of green laser diodes at changes. Additionally, Mr. Greg Mulholland was
523nm, the longest continuous-wave green promoted to the role of Director of
laser diode emission reported to date. Dr. Heather Splawn has joined Kyma in the Operations, while Vice President of
newly created position of Director of Business Development was added to Dr.
The company displayed green and blue Business Development and is responsible Edward Preble’s existing COO role – his
laser diodes at its private suite at the for helping the company capitalize on many new title is COO and VP Business
Consumer Electronics Show in Las Vegas, new business growth opportunities. Development.
Nevada January 7-11, 2010.
Heather recently completed her Ph.D. in Dr. Keith Evans, Kyma’s President and
Kaai’s lasers are based on InGaN Electrical Engineering at Duke University CEO, commented, “The Kyma team is
semiconductor technology and are and has a track record of leadership, growing in many important ways.
fabricated on innovative nonpolar and with experience including President of
semipolar GaN substrates. Direct diode Duke University’s Engineering Graduate The leadership shown by Ed and Greg is
green lasers offer dramatic improvement in Student Council (EGSC), President of making great impact throughout our
size, weight, and cost over conventional gas Upsilon Phi Epsilon – an International organization.
or solid state lasers and enable a variety of Honor Society for the Computing and
new applications in consumer projection Information Disciplines, and Director of The technical contributions by Troy and Ziad
displays, defense pointers and illuminators, Operations for The DOUGHMAN – an are already accelerating progress in our
biomedical instrumentation and important Durham, NC based charity race. substrate development and production
therapeutics, and industrial imaging activities.
applications. Dr. Troy Baker and Dr. Ziad Herro have been
hired as Crystal Growth Engineers and are And with the addition of Heather, we can
Kaai was founded by world renowned responsible for helping advance the now apply proper bandwidth to a number of
semiconductor laser pioneers Professors company’s GaN and AlN crystal growth opportunities.
Shuji Nakamura, Steven Denbaars and James manufacturing capabilities. Both Troy and
Speck of University of California, Santa Ziad have very strong backgrounds in the Going forward, I am bullish on our ability to
Barbara. The management team is led by Dr. physics and engineering of wide bandgap continue to stimulate and penetrate
Richard Craig and is comprised of semiconductor crystal growth. the market for advanced nitride
commercial laser industry veterans. Kaai is semiconductor materials – through great
vertically integrated and operates a laser Troy received his PhD in Materials Science customer focus, a relentless pursuit of
diode fabrication facility in Santa Barbara, CA. and Engineering from University of California continuous product improvement and new
To learn more about Kaai and its product Santa Barbara (UCSB) under the direction product development, and a keen eye
roadmap, contact the company at of Shuji Nakamura, while Ziad received his towards new business development
info@kaai.com PhD in Condensed Matter Physics jointly opportunities. “
January/February 2010 www.compoundsemiconductor.net 21
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