“If we integrate it with a contact lens or other wearable electronics, it expands your vision,” Zhong said. “It provides you another way of interacting with your environment.”
The first room-temperature light detector that can sense the full infrared spectrum has the potential to put heat vision technology into a contact lens.
Unlike comparable mid- and far-infrared detectors currently on the market, the detector developed by University of Michigan engineering researchers doesn’t need bulky cooling equipment to work.
“We can make the entire design super-thin,” said Zhaohui Zhong, assistant professor of electrical engineering and computer science. “It can be stacked on a contact lens or integrated with a cell phone.”
Infrared light starts at wavelengths just longer than those of visible red light and stretches to wavelengths up to a millimeter long. Infrared vision may be best known for spotting people and animals in the dark and heat leaks in houses, but it can also help doctors monitor blood flow, identify chemicals in the environment and allow art historians to see Paul Gauguin’s sketches under layers of paint.
Unlike the visible spectrum, which conventional cameras capture with a single chip, infrared imaging requires a combination of technologies to see near-, mid- and far-infrared radiation all at once. Still more challenging, the mid-infrared and far-infrared sensors typically need to be at very cold temperatures.
Graphene, a single layer of carbon atoms, could sense the whole infrared spectrum—plus visible and ultraviolet light. But until now, it hasn’t been viable for infrared detection because it can’t capture enough light to generate a detectable electrical signal. With one-atom thickness, it only absorbs about 2.3 percent of the light that hits it. If the light can’t produce an electrical signal, graphene can’t be used as a sensor.
“The challenge for the current generation of graphene-based detectors is that their sensitivity is typically very poor,” Zhong said. “It’s a hundred to a thousand times lower than what a commercial device would require.”
To overcome that hurdle, Zhong and Ted Norris, the Gerard A. Mourou Professor of Electrical Engineering and Computer Science, worked with graduate students to design a new way of generating the electrical signal. Rather than trying to directly measure the electrons that are freed when light hits the graphene, they amplified the signal by looking instead at how the light-induced electrical charges in the graphene affect a nearby current.
“Our work pioneered a new way to detect light,” Zhong said. “We envision that people will be able to adopt this same mechanism in other material and device platforms.”
The Latest on: Infrared vision
via Google News
The Latest on: Infrared vision
- Global IR LED Market to be Driven by the Automotive Sector in the Forecast Period of 2021-2026on August 23, 2021 at 8:15 am
The new report by Expert Market Research titled, ‘Global IR LED Market Size, Share, Price, Trends, Growth, Analysis, Key Players, Outlook, Report, Forecast 2021-2026`, gives an in-depth analysis of ...
- Want to Kill a Tank? America’s Javelin Missile Is the Only Choiceon August 23, 2021 at 12:40 am
The Javelin is one the U.S. military’s most effective, man-portable weapon systems. They’re available to frontline infantry squads in the Marines and Army, and typically a few are stowed inside ...
- 4MP IR Dome AHD Camera, UTC Control,AHD/CVI/TVI/CVBS 4-in-1.Indoor Use,Perfect Night Visionon August 21, 2021 at 12:52 am
Please delete some items if you want to add other items in your cart. White all metal casing . 30pcs ￠5 IR LEDs(25M IR Distance). Metal+ glass strong lens. 4MP 3.6mm HD Fixed Lens (2.8mm,4mm,6mm,8mm ...
- ATL Partners invests in GEOSTon August 19, 2021 at 2:44 pm
ATL Partners has made an investment in GEOST, a Tucson, Arizona-based provider of of small-to-medium sized electro-optical/infrared sensors for national security space missions.
- Low-Cost Infrared Detector Could Give Future Smartphones, Vehicles Serious Computer Vision Smartson August 18, 2021 at 12:54 pm
New sensor gives autonomous vehicles the ability to peer through fog and lets smartphones distinguish between different materials.
- AI dashcam selected for trucking ADAS, telematics and driver monitoringon August 17, 2021 at 5:29 am
KeepTruckin have signed an agreement to use Ambarella’s edge artificial intelligence (AI) vision system-on-chip (SoC) for its latest AI dashcam. The device provides AI and image processing for its ...
- Global Shortwave Infrared Market 2021 is set to Experience a Revolutionary growth by 2026 with Key Trendson August 12, 2021 at 3:14 am
The report for the worldwide Shortwave Infrared market gives a harsh thought regarding the various factors and patterns influencing the improvement graph of the worldwide market. Advancement of the ...
- Chery to Test QuadSight Vision of Foresighton August 10, 2021 at 9:30 pm
During the first phase, Chery will test the QuadSight vision prototype system for the purpose of evaluating Foresight’s technology and its potential further integration into advanced solutions for ...
- Collins’ Enhanced Vision sensor to be integrated into A320on August 10, 2021 at 7:57 pm
Collins Aerospace's Enhanced Vision sensor will be integrated into Airbus A320 flight vision systems, and will be rolled out to other Airbus types in the future.
- Best night-vision goggles: How to see the galaxy when the Sun goes downon August 10, 2021 at 2:00 pm
You don’t have to be on a movie set or on a tour of duty to use night-vision goggles. While the most advanced NVGs are still largely reserved for those in the armed forces––as well as the exciting ...
via Bing News