Perfect optical absorber invented at Harvard University - Images. Harvard Professor of Applied Physics Federico Capasso and his collaborators have invented a nearly perfect optical absorber.
By coating a piece of sapphire with an exceedingly thin 180-nm layer of vanadium dioxide, a surface is created that absorbs 99.75 percent of infrared light with a wavelength of 11.6 micron wavelength. Such optical absorbers can be tailored to enable a wide range of applications. View all For most of a century, anti-reflection coatings have been used to greatly reduce reflections from an optical surface by creating destructive interference between the light waves reflected from the front and back interfaces of the coating.
Essentially no light is lost to absorption in these conventional coatings. On the left appears a cartoon of the Capasso group's experimental setup, and on the right appears experimental data proving that their perfect absorber works very well indeed VO2 undergoes a metal-insulator phase transition at temperatures reasonably near room temperature. "Cool blue" pigment could boost energy efficient building. This 'trigonal bipyramidal' crystalline structure that forms the basis of OSU's 'cool blue' pigment Researchers at Oregon State University (OSU) have discovered a new type of blue pigment that could help boost the energy efficiency of buildings.
Discovered unexpectedly three years ago, the "cool blue" pigment has unusually high infrared heat reflectivity which it is hoped can be channeled into commercial products in the near future. Using roofing materials that reflect heat well has long been recognized as an important aspect of passive solar design. While lighter pigments are generally better when it comes to reflecting heat in the infrared spectrum, the new "cool blue" punches above its weight despite its deeper tone. “This pigment has infrared heat reflectivity of about 40 percent, which is significantly higher than most blue pigments now being used,” said Mas Subramanian, an OSU professor of chemistry who discovered the compound. Source: Oregon State University. Advanced military night-vision sensors rely on sensor fusion, networking, and signal processing.
Science. Articles. IR Sensors. BLÜCHER SYSTEMS - BLÜCHER GmbH. Forschung und Entwicklung. Defense Review - Blucher Systems Ghost Soldier Camouflage and Spectralflage Vehicle Camo: Multispectral Combat Camouflage Fabric Technology that Provides Anti-Thermal/IR (Infrared) Camo for 21st Century Special Warfare (SPECWAR) By David Crane defrev (at) gmail (dot) com April 19, 2011Last updated on 4/20/11.
Anti-Nightvision camouflage. Adsorption. Saab Barracuda LLC: Private Company Information. April 16, 2014 1:05 PM ET Aerospace and Defense Company Overview Saab Barracuda LLC engages in the design, testing, and manufacture of signature management and camouflage products for the U.S. armed forces and government agencies in the United States.
The company’s products include ultra lightweight camouflage net system (ULCANS), which is a camouflage technology with multispectral capabilities providing protection against visual, infrared, thermal infrared, and broad-band radar threats; and Signature Concealment Personnel Suit, which is a Ghillie suit that offers protection against visual, infrared, and thermal infrared threats, as well as enhances survivability. It also offers Gun-Mounted Vehicle, a system with multispectral characteristics that allow s... Saab Barracuda LLC engages in the design, testing, and manufacture of signature management and camouflage products for the U.S. armed forces and government agencies in the United States. 608 East McNeill Street Lillington, NC 27546.
SHCB－professional military camouflage net and tent manufactory. Hyperstealth reveals SMARTCAMO, the first adaptive “chameleon” camouflage uniform. Hyperstealth Biotechnology Corp. recently revealed that they have developed the first true chameleon type camo uniform, which changes colors to blend in with whatever environment the soldier is in.
Needless to say this is a major development in the industry and represents a holy grail in the field and science of military camouflage. Myself on the right wearing a Hyperstealth uniform in Iraq. This is just an example of their product being used in theater and is NOT SMARTCAMO. Currently, no pictures of SMARTCAMO have been publicly released. Guy Cramer, the mad scientist behind Hyperstealth, has said that the technology itself is a “composite” (presumably of different systems and techniques) but does not involve nanotechnology, ruling out, I would think, some sort of Phased Array Optics of the variety that actually bend light, in line with the kind of technology seen in the “Predator” movies.
I’m on the left wearing the “Desert Dune” pattern uniform offered by Hyperstealth. Sources: Intermat - Anti-Thermal / Anti-IR Camouflage Coating Materials. Intermat - Thermal and Radar Signature Management. Intermat is the single source of stealth technology coatings for military applications, developed after more than 20 years of in-house research and development (R&D).
We specialise in the research, development, and production of stealth/anti-thermal coatings and radar absorbing materials. Production is carried under the highest standards, in compliance with the ISO 9001:2008 quality assurance provisions. ANAC visible camouflage, CARC, infrared reflective, thermal IR, conductive and anti-static coatings are recognized for quality, endurance and performance. - Image. SCI-114 (RTG-024) Automated Infrared Camouflage Pattern Generation. Camo backgroDefense Recontendw. BAE Developing IR Cloaking Device. We’ve seen plenty on stealth jets and stealthy ships.
Now, BAE Systems is hustling to give ground vehicles what almost amounts to a nighttime cloaking device. Called ADAPTIV, the system features hundreds of hexagonal metal “pixels” that quickly change temperature to match the heat signature of a vehicles’ surroundings — therefore rendering it invisible to infra-red cameras. ADAPTIV pixels can even be programmed to mimic the heat signature and shape of other vehicles; making a tank look like a car, for example. The pixels can easily be bolted onto a vehicles’ hull or ballistic armor plates, according to the company. From a BAE announcement: On-board cameras pick up the background scenery and display that infra-red image on the vehicle, allowing even a moving tank to match its surroundings. BAE engineers are currently focused on making ADAPTIV capable of defeating the infrared detection equipement.