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. The work opens the door for a new generation of high spectral-contrast infrared imaging devices with applications in medicine, defense and security, planetary sciences, and art preservation.…
New Design For Longer Lasting Night Vision Cameras
With the amazing ability to survey areas in complete darkness, night-vision cameras have revolutionized the security industry. But the materials and technology embodied in current cameras tend to degrade under temperature stress, causing night-vision devices to frequently break. Northwestern University’s Manijeh Razeghi and her team have developed a new approach to improving the technologies in…
Improving Internet with Mid-Wavelength Infrared
With a growing number of people connecting to the Internet everyday, Internet cables are under the threat of a “bandwidth explosion.” Free-space optical (FSO) communication is a promising candidate to lighten the load. FSO uses visible or infrared light to wirelessly transmit data through open air as opposed to using cables, which have limited bandwidth.…
Tunable Lasers to Improve Infrared Spectroscopy
A new development from Northwestern University’s Manijeh Razeghi could be another tool for protecting our borders. Supported by the Department of Homeland Security, Razeghi’s lab has created a new, broad-band tunable infrared laser that has implications for the detection of drugs and explosives. The robust, all solid-state laser can be rapidly tuned to emit in…
Single-Chip Laser Delivers Powerful Result
From their use in telecommunication to detecting hazardous chemicals, lasers play a major role in our everyday lives. They keep us connected, keep us safe, and allow us to explore the dark corners of the universe. Now a Northwestern University team has made this ever-important tool even simpler and more versatile by integrating a mid-infrared…
Saving Money and the Environment With 3-D Printing
A Northwestern University team has confirmed a new way to help the airline industry save dollars while also saving the environment. And the solution comes in three dimensions. By manufacturing aircrafts’ metal parts with 3-D printing, airlines could save a significant amount of fuel, materials, and other resources. Led by Eric Masanet, the team used…