Category Photonics

Laser beam combining technologies are enabling High power Laser directed energy weapons on Trucks, Warships and Airplanes

beamcombining

Among the uses of Laser directed energy weapons (DEW) systems are providing very short-range air defense capability, close-in protection for naval vessels, counter-unmanned aerial vehicle (UAV), and protecting friendly forces from mortar and artillery attack. Laser require a power of the…...

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Countries developing Underwater LIDAR imaging systems for rapid wide-area anti-mine and anti-submarine operations

LMDS

Currently, the most widely used technology to detect underwater objects  is sound navigation and ranging (SONAR), because acoustic waves can  penetrate the water depths to the bottom of the sea. SONAR also suffers from unwanted multipass echoes that are due…...

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Next Generation MEMS thermopile IR sensor 2.0 for Internet of Things, smart homes, environment and energy technology

thrmopile

In the wake of increasing electronic gadget sales, the overheating problem for battery chargers has become an increasingly common safety issue. Overheating of chargers certainly can be caused by substandard chargers, faulty batteries, or by misuse of the chargers. In…...

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On Chip squeezed light sources for highly accurate Quantum navigation sensors and quantum key distribution.

vibrating mirror

GPS hacking and spoofing have made headlines around the world in recent years, from researchers successfully hacking a yacht’s navigation to bring it off its programmed course to the discovery of dozens of Russian ships whose GPS signals indicated they…...

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Ultra-thin membrane Flexible Lasers could be used as wearable CBRN sensors, Chip spectroscopy to data-communication

Organic semiconductors enable the fabrication of a range of lightweight and mechanically flexible optoelectronic devices. Organic LEDs, solar cells, and field-effect transistors are now routinely made in bendable or even stretchable formats and with extremely low specific weights.   Most…...

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New sensor protection technologies to mitigate threat of growing laser designators and Directed Energy Weapons

laserdamage

In recent years, high power fiber and semiconductor laser technology has improved rapidly, with power density increasing by an order of magnitude or more. Much of this increase has been driven by demand for industrial cutting machines and high-bandwidth, long-range…...

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Curved image sensors for better resolution, and wide field of view cameras for cell phones to Miniature UAVs

curvedsensor

Smartphone camera technology is growing in leaps and bounds in the past couple of years and continues to be a major point to differentiate their products.  More and more technologies are being incorporated including  larger sensors, better lenses, ultra-thin lens,…...

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Development of Next generation Infrared Focal Plane Arrays improving Military’s Night Fighting Capability

011e88ef4a8328e08be9d913808b8290

Night vision devices are becoming essential equipment for night driving, night flying and night surveillance, wildlife observation and search and rescue missions. Night Vision has become essential capability for ground forces in modern warfare as well as for counter terrorist…...

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Sound offers new directions in optical processing and integrated photonics

lightotsound

Brillouin scattering is an effect caused by the χ(3) nonlinearity of a medium, specifically by that part of the nonlinearity which is related to acoustic phonons. An incident photon can be converted into a scattered photon of slightly lower energy,…...

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Columbia Engineers Revolutionize Augmented Reality (AR) Glasses through novel engineered optical materials (EnMats)

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Imagine driving along the highway with directions and other pertinent information (think gas stations) appearing “on” your glasses so you ,don’t have to look away from the road. Or building a complicated DIY project with step-by-step instructions appearing “on” your…...

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