261. | 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] |
262. | 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] |
263. | 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] |
264. | 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] |
265. | Northwestern Team Produces Quantum Cascade Laser Optics and Photonics News - November 1, 1997 Using a single-step Growth process, Northwestern University researchers have produced room-temperature 8.5 μmm quantum cascade lasers (QCL). The lasers produce 1 μsec pulses at 200 Hz with a peak output power of more than 700 mW at 79K, and 25 mW at 300 K. ... [read more] |
266. | Researchers Demonstrate High-Power, Aluminum-free Mid-IR Laser Photonics Spectra - October 1, 1997 Scientist at the Center for Quantum Devices have demonstrated and Al-free laser diode that emits up to 3 W at 3.2 μm. In comparison, similar Al-Free diode lasers have a maximum output of 100 mW, according to the center's director Dr. Manijeh Razeghi. ... [read more] |
267. | Northwestern Pushes Nitirde Research Electron Materials Technology News - September 1, 1997 Northwestern University's Center for Quantum Devices investigated ternary AlInN grown by MOCVD. They found the material to have a band-gap energy of 5.26 eV, (higher than previously reported) for a composition of Al0.92In0.08N ... [read more] |
268. | Single-Step QC Laser Emits at 8.5 μm Photonics Spectra - August 1, 1997 In the latest development in quantum cascade laser (QCL) research a group of Northwestern University scientist reported an 8.5-μm emission from a QCL grown in a single step by gas-source MBE. ... [read more] |
269. | High-Power Mid-Infrared Diode-Laser Bar Generates Peak Power of 3 W at 3.2 μm Laser Focus World - August 1, 1997 Scientist at Northwestern University have developed an antimonide-based laser bar that yields 3 W of peak power at 3.2 μm operating at 90 K. The device was tunable by injection current over a range of about 70 nm. ... [read more] |
270. | Semiconuctor Laser International NASA Tech Briefs - July 10, 1997 Dr. Geoffrey T. Burnham, SLI's president and CEO announced that demand for laser build using Northwestern University's patented Al-Free technology was so great that work would begin on a second phase of its manufacturing facility that would double its size. ... [read more] |