Center for Quantum Devices

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181.	Researchers Demonstrate 100-Watt-Level Mid-infrared Lasers Northwestern University Press Release - December 1, 2009 Northwestern University researchers from the Center for Quantum Devices have achieved a breakthrough in quantum cascade laser (QCL) output power, delivering 120 watts from a single device at room temperature. In this work, Professor Razeghiâ€™s team demonstrated that the ridge width of a broad-area QCL can be increased up to 400 microns, without suffering from filiamentation. As a result, room temperature peak output power as high as 120 watts was obtained from a single device, which is up from 34 watts only a year ago. ... [read more]
182.	University Labs: Where Women Excel Society of Women Engineers Fall Magazine, Vol. 55, No. 4, p. 48-53 - September 30, 2009 What propels women to head university labs, especially when tenure and biological calendars collide? Manijeh Razeghi director of the Center for Quantum Devices at Northwestern University, stands in the its midst. She had the unique opportunity to build her center from the ground up. In her words, her goal was "to decrease the gap between research and production, while facing all the technical challenges and stringent requirements in order to ensure a safe and invigorating working environment." ... [read more]
183.	ULTRAVIOLET DETECTORS: Nitrides push performance of UV photodiodes Laser Focus World, p. 47-51 - September 1, 2009 Nitrides offer considerable advantages over other materials for ultraviolet detection. Recently, they proved useful for creating the worldâ€™s first UV single-photon detectors with efficiencies to 20%â€“detectors that could enable quantum computing and data encryption. ... [read more]
184.	ULTRAVIOLET DETECTORS: Nitrides push performance of UV photodiodes OptoIQ (A subsidiary of Laser Focus World) - September 1, 2009 Nitrides offer considerable advantages over other materials for ultraviolet detection. Recently, they proved useful for creating the worldâ€™s first UV single-photon detectors with efficiencies to 20%â€“detectors that could enable quantum computing and data encryption. ... [read more]
185.	Superlattices see in the dark SPIE Newsroom - July 28, 2009 Six years ago, the Center for Quantum Devices (CQD) at Northwestern University fabricated the first IR camera based on Type-II material. After that, the CQD focused on improving the optical and electrical performance of the imager. We developed a new variant of a type-II superlattice, called M-structure, because of the M-shape of the band alignment, which allows for more-flexible control of the energy gap, energy levels, and effective mass. Many processing imporovements were also developed. The design, fabrication, and processes improvments have combined to make type-II superlattices a viable alternative to HgCdTe for IR imaging. ... [read more]
186.	2009 IEEE Photonics Society Graduate Student Fellowship Awarded to Pierre-Yves Delaunay and Can Bayram IEEE Photonics Society - July 21, 2009 The IEEE Photonics Society Membership Committee has selected Pierre-Yves Delaunay and Can Bayram as two of the winners of the 2009 IEEE Photonics Society Graduate Student Fellowships. The Fellowship consists of a one-time award of a $5000.00 honorarium. In addition to the Fellowship Award, complimentary registration to the meeting and a travel grant of up to $2500.00 is available to attend the Photonics Society 2009 Annual Meeting. ... [read more]
187.	SPIE Awards $4000 Scholarship to Binh-Minh Nguyen SPIE Press Release - May 8, 2009 SPIE has awarded a $4000 SPIE Scholarship in Optical Science and Engineering to Binh-Minh Nguyen, Northwestern University. Binh-Minh is a PhD candidate studying applied science at the Center for Quantum Devices (CQD) at Northwestern Univ. under the direction of Walter P. Murphy Professor and Director, Manijeh Razeghi. ... [read more]
188.	SPIE Awards $6000 Scholarship to Can Bayram SPIE Press Release - May 6, 2009 SPIE has awarded a $6000 SPIE Laser Technology, Engineering and Applications Scholarship to Can Bayram, Northwestern University. Can Bayram is a PhD candidate studying applied science at the Center for Quantum Devices (CQD) at Northwestern University under the direction of Walter P. Murphy Professor and Director, Manijeh Razeghi. ... [read more]
189.	French Connections: Manijeh Razeghi Thinks Globaly McCormick - May 1, 2009 Part of Professor Razeghi's heart and soul will always be in France. Though she came to the United States more than 17 years ago, she got her start in Paris, and all of her family is still in France. She keeps up her French connections by collaborating with prestigious French universities -- and recruiting their best students. ... [read more]
190.	Northwestern Students Receive $10,000 Prizes from the Dow Sustainability Innovation Challenge McCormick - March 23, 2009 The Northwestern Institute for Sustainable Practices will award CQD Graduate Student Can Bayram and two other student groups a $10,000 prize from the Dow Sustainability Innovation Challenge in recognition of research contributing to global sustainability. ... [read more]

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