Center for Quantum Devices

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71.	Applied Physics Letters' Releases New Article Authored by Razeghi & CQD Team ELECTRICAL ENGINEERING & COMPUTER SCIENCE DEPARTMENT NEWS - June 13, 2018 Her groups efforts at the Center for Quantum Devices (http://cqd.eecs.northwestern.edu/) (CQD) demonstrated growth and characterization of long wavelength infrared type-II InAs/InAs1-xSbx superlattice photodiodes with a 50% cut-off wavelength at 8.0 Î¼m on a GaSb substrate grown by metalorganic chemical vapor deposition. At 77 K, the photodiodes exhibited a differential resistance at zero bias (R0A) of 8.0 Î© cm2 and a peak responsivity of 1.26 A/W corresponding to a quantum efficiency of 21%. A specific detectivity of 5.4 Ã— 1010 cm Hz1/2/W was achieved at 7.5 Î¼m. Her coauthors include: D. H. Wu (https://aip.scitation.org/author/Wu%2C+D+H) , A. Dehzangi ... [read more]
72.	Prof. Razeghi is highlighted in the Northwestern Undergraduate Research Journal Electrical Engineering and Computer Science - June 11, 2018 Manijeh Razeghi is showing me a box. It's a small box, fitting well Within the palm of her hand and no more than a few inches in height. The transparent housing shows off the circuitry inside, including a row of AAA batteries which powers it. She points to a small node on the to of the box. "That is a light," she told me. "When you are in the sun, on the beach, a part of the sun, that is UV, has very high energy and can create cancer." She moves her hand in front of the sensor and the light fades out. She moves her hand away and it lights up again. ... [read more]
73.	Springer Engineering facebook - April 26, 2018 Springer Engineering is delighted to announce textbook author Manijeh Razeghi, Professor of Electrical Engineering at Northwestern University, has received the prestigious Benjamin Franklin Medal for Electrical Engineering as part of the Class of 2018 Franklin Institute Awardees. The Franklin Institute Awards date back almost 175 years and boasts an unparalleled list of 19th, 20th, and 21st Century researchers and innovators among its laureates. Previous awardees include Nikola Tesla, Thomas Edison, Rudolf Diesel, Pierre and Marie Curie, Orville Wright, Albert Einstein, Edwin Hubble, Frank Lloyd Wright, Jacques Cousteau, Stephen Hawking, Jane Goodall, Bill Gates, and Midred S. Dresselhaus. Quoting the Institute Award citation, Professor Razeghi is honored this year “[f]or the realization of high-power terahertz frequency sources operating at room temperature using specially designed and manufactured semiconductor lasers, which enables a new generation of imagers, chemical/biological sensors, and ultra-broadband wireless communication systems.” The Institute also produced a fascinating five-minute video illustrating Dr. Razeghi’s achievement: ... [read more]
74.	Annual Book Performance Report 2017 Springer.com - April 25, 2018 Since its online publication on November 15, 2009, there has been a total of 25,031 chapter downloads for your eBook on SpringerLink. The table to the right shows the download figures for the last year(s). ... [read more]
75.	Book Performance Report 2017 Springer.com - April 24, 2018 Since its online publication on February 18, 2009, there has been a total of 44,160 chapter downloads for your eBook on SpringerLink. The table to the right shows the download figures for the last year(s). ... [read more]
76.	Franklin Institute Youtube - April 19, 2018 The Franklin Institute has released two versions of a promotional video covering the THz work for which Prof. Razeghi received the Franklin medal on April 19th, 2018. These videos target a more lay audience, but are highly recommended viewing for anybody interested in terahertz: 5 Minute Version 1 Minute Version ... [read more]
77.	honoring Manijeh Razeghi recipient of the 2018 Benjamin Franklin Medal in Electrical Engineering The Franklin Institute Awards - April 18, 2018 Leading international scholars are assembled in a symposium dedicated to the technical contributions of Prof. Razeghi, founding Director of Center for Quantum Devices of Northwestern University, for her innovative design of highpower, room temperature THz sources using nonlinear optics, and for developing the epitaxial manufacturing techniques to produce them ... [read more]
78.	'Applied Physics Letters' Publishes New Article Authored by Razeghi & CQD Team Appl. Phys. Lett. 112 - April 2, 2018 Prof. Manijeh Razeghi's research has been published by 'Applied Physics Letters', titled, "Shortwave Quantum Cascade Laser Frequency Comb for Multi-heterodyne Spectroscopy" ... [read more]
79.	Thin-Film Antimonide-Based Photodetectors Integrated on Si IEEE Photonics Society - April 1, 2018 Monolithic integration of antimonide (Sb)-based compound semiconductors on Si is in high demand to enrich silicon photonics by extending the detection range to longer infrared wavelengths. In this paper, we have demonstrated the damage-free transfer of large-area (1×1 cm2 ) narrow-bandgap Sb-based type-II superlattice (T2SL)-based thin-film materials onto a Si substrate using a combination of wafer-bonding and chemical epilayer release techniques. An array of Sb-based T2SL-based long-wavelength infrared (LWIR) photodetectors with diameters from 100 to 400 μm has been successfully fabricated using standard "top–down" processing technique. ... [read more]
80.	A Lifetime of contributions to the world of semiconductors using the Czochralski invention Elsevier Physics‏ @ElsevierPhysics - November 29, 2017 A lifetime of contributions to the world of #semiconductors using the #Czochralski invention ... [read more]

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