251.
| Team Builds More Efficient Quantum Cascade Laser
Photonics Spectra - February 1, 1999
From chemical spectroscopy to free-space optical communications, a growing number of applications can benefit from lasers emitting in the IR between 8 and 12 μm. In recent years, many have looked closely at quantum cascade lase technology for these types of applications. ... [read more]
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252.
| Indium Phosphide-Based Photodetectors Sense Longer Wavlengths
Laser Focus World - December 1, 1998
Researchers at Northwestern University and Wright Patterson Air Force Base have demonstrated quantum-well infrared photodetectors (QWIPs) for wavlengths between 8 and 20 μm using lattice-matched InGaAlAs-InP. ... [read more]
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253.
| Northwestern Reports High-Power Laser Emission
Optics and Photonics News - October 1, 1998
Researchers at Northwestern University's Center for Quantum Devices recently reported high-power laser emission at 3.4 μm, up to 6.7 W in pulse operation, from AlAsSb/InAsSb/InPAsSb/InAs semiconductor laser diodes. ... [read more]
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254.
| Scientists Unveil High-Power Mid-IR Laser
Photonics Spectra - October 1, 1998
In the latest development from the Center for Quantum Devices at Northwestern University, researchers have reported developing a high-power mid-IR laser emitting at 3.4 μm. ... [read more]
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255.
| Are Laser Manufacturers Blue with Envy?
Photonics Spectra - May 1, 1998
Some say Nichia is two years ahead of the pack, but that may not be true. Researchers at the Center for Quantum Devices have demonstrated continuous wave room temperature operation of InGaN/GaN multiple quantum well lasers. ... [read more]
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256.
| My Genius Students
Northwestern - May 1, 1998
Manijeh Razeghi: Whom do you most admire? My genius Students; What Inspires you most? The mystery of our own human minds and bodies and the whole nature surrounding us; Which talent would you most like to have? TO be a good teacher, leader, and role model to young students. ... [read more]
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257.
| As Companies Race toDevelop the Blue Laser, Universities Join the Game
Optics and Photonics News - January 10, 1998
Nichia Chemicals Industry Ltd. is still setting the pace, but more companies and universities are heating up the competition. This includes promising new research coming from Northwestern University's Center for Quantum Devices. ... [read more]
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258.
| High Power InAsSb/InAsSbP laser Diodes Emitting in the 3 - 5 &mum Range
Research Hilights or the Physics Division - January 1, 1998
Mid-infrared laser diodes (λ = 3 to 5 μm) are the attractive source for a wide range of applications ranging from chemical spectroscopy to free-space and optical fiber communication. ... [read more]
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259.
| Record Calimed by Al-free Laser
Electron Materials Technology News - December 1, 1997
Researchers at Northwestern University's Center for Quantum Devices are claiming the longest lifetime ever achieved for any high-power (more than 1 W) laser diode operated at high temperature (-60°C) with uncoated facets. ... [read more]
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260.
| Sharper Imaes Thanks to Bigger Substrates
Inside R & D - November 12, 1997
A group at Northwestern University's Center for Quantum Devices has pushed the envelope by marrying higher quality, more uniform, cheaper and larger GaAs substrates with InSb films. ... [read more]
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Address: Center for Quantum Devices; 2220 Campus Drive RM 4051; Evanston, IL 60208-0893
Phone: (847) 491-7251
Email: razeghi@northwestern.edu