Center for Quantum Devices

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76.	LOPS 2021 - International Scientific Conference on Lasers, Optics, Photonics and Sensors webinar Recognition to Professor Manijeh Razeghi - June 12, 2021 Recognition to Professor Manijeh Razeghi for her Plenary Presentation on “Quantum Science and Technology" and for her support in Excel Group journey. ... [read more]
77.	Certificate of Appreciation as Plenary Speaker at 2nd ICLLT-2021 2nd International Conference on Light and Light-based Technologies (2nd ICLLT-2021) - May 28, 2021 The Photonics Application & Research Center and the Photonics Department of Gazi University, Ankara, Turkey would like to thank Professor Razeghi for her invaluable contributions as a Plenary Speaker with presentation entitled “Light and Light-based technology” at the 2ndICLLT, held virtually on 26-28 May 2021. ... [read more]
78.	Plenary speaker - 7th Global Summit on Laser Optics and Photonics Dr. Manijeh Razeghi will be a plenary speaker at the 7th Global Summit on Laser Optics and Photonics - May 27, 2021 The objective of this conference is to provide a unique forum for discussion of the latest developments, refresh knowledge and offer plenty of networking opportunities with leading researchers as well as most influential minds in the fields of Lasers, Optics, Photonics, Optoelectronics, Semiconductor Devices, Atomic, Molecular and Optical Physics. ... [read more]
79.	2nd International Conference on Light and Light-based Technologies (2nd ICLLT-2021) - May 26, 2021 The 2nd International Conference on Light and Light-based Technologies (2nd ICLLT-2021), which will be held at the Gazi University, Ankara (Turkey), from 26 to 28 May 2021. The ICLLT-2021 conference is currently planned as an online event. ICLLT-2021 conference themes are axed on Photonics, Spectroscopy and microscopy techniques, lasers, and quantum optics. ... [read more]
80.	Plenary speaker at the 2nd International Conference on Light and Light-based Technologies (2nd ICLLT-2021) - May 26, 2021 The 2nd International Conference on Light and Light-based Technologies (2nd ICLLT-2021), which will be held at the Gazi University, Ankara (Turkey), from 26 to 28 May 2021. The ICLLT-2021 conference is currently planned as an online event.ICLLT-2021 conference themes are axed on Photonics, Spectroscopy and microscopy techniques, lasers, and quantum optics. ... [read more]
81.	Women in Electron Devices Society Manijeh Razeghi a pioneer leader in in the area of III-V compound semiconductor materials and optoelectronic devices - April 1, 2021 Professor Manijeh Razeghi is a pioneering leader in the area of III-V compound semiconductor materials and optoelectronic devices. For more than 40 years she has been blazing a trail, developing new semiconductor materials and then using them to realize practical semiconductor optoelectronic devices including a wide range of light emitting diodes and lasers emitting at wavelengths from the terahertz, to the infrared, all the way to the deep ultraviolet. ... [read more]
82.	Researchers Design Next-generation Photodetector Light Sci Appl 10, 17 (2021). https://doi.org/10.1038/s41377-020-00453-x "Band-structure-engineered high-gain LWIR photodetector based on a type-II superlattice". - January 28, 2021 Prof. Manijeh Razeghi's research team has developed a new approach to quantum device design that has produced the first gain-based long-wavelength infrared (LWIR) photodetector using band structure engineering based on a type-II superlattice material. ... [read more]
83.	Manijeh Razeghi - Conference Chair at SPIE Optics and Photonics 2021 SPIE Optics and Photonics 2021 https://spie.org/conferences-and-exhibitions/optics-and-photonics - January 8, 2021 Hear the latest advances shared by researchers and scientists in optical engineering and applications, nanotechnology, quantum science, organic photonics, and astronomical instrumentation. Meet with top companies from the optics industry at the exhibition. ... [read more]
84.	VLSI and Nanotechnology in Energy, Environment, and Neuromorphic Computation Dr. Manijeh Razeghi will be a distinguished speaker at the Centre for Advanced Electronics (CAE) Indian Institute of Technology Indore - VLSI and Nanotechnology in Energy, Environment, and Neuromorphic Computation - December 21, 2020 This short term course (STC) will cover topics in nanotechnology for next-generation applications in electronics, photonics, memory technologies, biochemical sensors, solar cells, energy storage and converters for the advancement of knowledge. This brings together expertise from engineers/scientists in different premier institutes in the country and abroad. Read more ... ... [read more]
85.	Panelist for Webinar on Materials Science, Engineering and Technology Dr. Manijeh Razeghi will be a panelist for Webinar on Materials Science, Engineering and Technology. - November 19, 2020 Aim of this webinar is to bring together scientists, researchers and companies to attend and share their visions, experiences and recent research developments in the field of materials science, engineering and technology. The theme of webinar is “Encounters and Inventions in Materials Science, Engineering and Technology”. It also provides a platform to present and discuss the most recent innovations, trends, and practical challenges encountered, and solutions adopted in the fields of materials science, engineering and technology. ... [read more]
86.	Plenary Speaker of NICE 2020 - October 12, 2020 Dr. Manijeh Razeghi will be Plenary Speaker at NICE2020 - 5th International Bio-inspiration & 2nd International Optics N.I.C.E. conference - Oct. 12-14, 2020 in Nice - France ... [read more]
87.	NICE - 2020 International Conference 5^th International Conference on Bioinspired and Biobased Chemistry & Materials - October 11, 2020 The scientific and international NICE-Conferences are organized with the objective to share new developments in the growing field of bioinspired chemistry & materials (since 2012) as well as in Optics Photonics & Materials (since 2016) and to understand new challenges that are being faced in these fields of research. Read more …. ... [read more]
88.	Manijeh Razeghi Selected to Editorial Board of Light: Science & Applications Nature Publishing Group - July 21, 2020 Dr. Manijeh Razeghi will serve on the editorial board for two year. Dr. Razeghi has been appointed as an editor of Light: Science & Applications (LSA), published by the Nature Publishing Group, from July 2020 to June 2022... [read more] ... [read more]
89.	High power continuous wave operation of single mode quantum cascade lasers up to 5 W spanning λ∼3.8-8.3 μm chosen for inclusion in Spotlight on Optics. OSA Spotlight on Optics. - July 8, 2020 Dr. Manijeh Razeghi, The Optical Society (OSA) is pleased to inform you that your paper, High power continuous wave operation of single mode quantum cascade lasers up to 5 W spanning λ∼3.8-8.3 μm, has been chosen for inclusion in Spotlight on Optics. ... [read more]
90.	Certificate of Appointment from Light Science & Applications Light: Science & Applications - June 30, 2020 Dr. Manijeh Razeghi received a Certificate of Appointment from Light: Science & Applications for her service as an editor for (ISSN (online): 2047-7538 a Springer Nature Journal, from July 2020 to June 2022. ... [read more] ... [read more]
91.	"Room temperature quantum cascade lasers with 22% wall plug efficiency in continuous-wave operation", has been highlighted as an Editor's Pick. - June 8, 2020 We report the demonstration of quantum cascade lasers (QCLs) with improved efficiency emitting at a wavelength of 4.9 µm in pulsed and continuous-wave (CW) operation. Based on an established design and guided by simulation, the number of QCL-emitting stages is increased in order to realize a 29.3% wall plug efficiency (WPE) in pulsed operation at room temperature. With proper fabrication and packaging, a 5-mm-long, 8-µm-wide QCL with a buried ridge waveguide is capable of 22% CW WPE and 5.6 W CW output power at room temperature. This corresponds to an extremely high optical density at the output facet of ∼35 MW/cm&up2;, without any damage. ... [read more]
92.	New Textbook Demystifies Carbon Materials McCormick Press Release - January 17, 2020 Carbon is a primary building block of life and forms millions of organic compounds with hydrogen, making it essential to the universe. It is also found in nearly every part of the human body. Northwestern Engineering’s Manijeh Razeghi wrote a new textbook offering a fundamental understanding of carbon, its science, applications, and recent discoveries made in the field of carbon materials. ... [read more]
93.	Engineering the Quantum Era: Breaking Spectral barries for photonics Optics 2019 - October 7, 2019 The global quantum cascade laser (QCL) market is expected to grow from USD 302.9 million in 2016 to USD 374.8 million by 2022 at a CAGR of 3.9% between 2017 and 2022.The report aims at estimating the market size and future growth potential of the QCL market supported packaging sort, operation mode, fabrication technology, and geographic analysis.The base year thought of for the study is 2016, and therefore the market size forecast is provided for the amount between 2017 and 2022. ... [read more]
94.	TERAHERTZ OPTICS Room-temperature comb - June 21, 2019 A frequency comb in the terahertz region and that operates at room temperature could prove useful for applications in spectroscopy. The device, designed and built by scientists from Northwestern University in the US, relies on difference-frequency generation from a mid-infrared (mid-IR) quantum cascade laser (QCL). ... [read more]
95.	VISIT OF PROFESSOR MANIJEH RAZEGHI TO UPEC - June 19, 2019 Manijeh Razeghi has been a pioneer in the development and implementation of the main modern epitaxy techniques. After leading, from 1986 to 1991, the Exploratory Materials Laboratory at Thomson CSF; she is the Director of the Center for Quantum Devices at Northwestern University in Chicago. ... [read more]
96.	ECE Student Profile: Robby Gray - April 26, 2019 When Robby Gray (’19) isn’t working with lasers, he might be found on campus arranging music for the X-Factors acapella group, supporting new students as a leader for Wildcat Welcome, or working with Global Engineering Brigades to build health infrastructure for communities in Central America and West Africa. ... [read more]
97.	p-Type thin film field effect transistors based on lithium-doped nickel oxide channels grown by pulsed laser deposition Proceedings Volume 10919, Oxide-based Materials and Devices X; 109191H (2019 - March 12, 2019 Abstract Staggered back-gated Field Effect Transistor (FET) structures were made by growing Li-doped NiO on Si3N4/SiO2/Si (111) using room temperature pulsed laser deposition. Optical studies showed over 80% transmission for the NiO:Li channel at wavelengths > 500nm. The MISFET revealed rectifying transfer characteristics, with a VON close to zero, a channel mobility of ~ 1 cm2/Vs, a gate leakage current (at +5V) of 0.8 mA and an ION/IOFF ratio (at a Vgs of -15V) of ~ 103. The transistors showed enhancement-mode output characteristics indicative of a p-type channel with sharp pinchoff, hard saturation, a comparatively high (milliampere range) Id and a relatively low on-resistance of ~11 kΩ. Hence the adoption of Li doping in NiO channels would appear to be a promising approach to obtain p-type TFTs with superior transparency, speed and energy efficiency. ... [read more]
98.	Breaking Spectral and Performance Barriers for Diode Lasers - Plenary Speaker, Manijeh Razeghi - IPC 2018 IEEE Tv - February 19, 2019 This is a recording of the live-streamed plenary talk from Dr. Manijeh Razeghi, Director of the Center for Quantum Devices at Northwestern University, from the 2018 IEEE Photonics Conference (IPC). Title: "Breaking Spectral and Performance Barriers for Diode Lasers with Material Innovation" Abstract: From humble beginnings, diode laser technology has evolved to become an invaluable tool for many aspects of our daily lives. Diode lasers exhibit a number of favorable properties which have led to their wide adoption, including compactness, robustness, and mass producibility. ... [read more]
99.	Seeking Illumination Northwestern Office For Research - February 15, 2019 Lifelong passion, discipline, and curiosity have fueled Manijeh Razeghi’s breakthrough discoveries in semiconductor science, using light to create world-changing technologies ... [read more]
100.	New Method Improves Infrared Imaging Performance Norwestern Engineering - February 6, 2019 A new method developed by Northwestern Engineering’s Manijeh Razeghi has greatly reduced a type of image distortion caused by the presence of spectral cross-talk between dual-band long-wavelength photodetectors. ... [read more]

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