Category Photonics

AI & IT, Photonics

Neural and tensor holography enables realistic 3D holographic images in virtual and augmented reality headsets

Virtual reality headsets have gained tremendous popularity. However, one common problem tends to occur— the headsets can make users feel sick. Nausea can be experienced because users’ eyes are being tricked into seeing a 3D scene, when, in fact, they…...

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Rajesh Uppal
June 3, 2022

Nanotech, Photonics

DARPA EXTREME devloped engineered optical materials or metamaterials now transitioning from NGA to AFRL UAS and Unmanned combat aerial vehicles (UCAV)

Optics & Electro-Optics areas through areas like Day vision, Night Vision, Thermal Imaging are playing vital role in warfare due to their high resolution and covert passive operation. The Infrared Search and Track system uses the heat or infrared radiation…...

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Rajesh Uppal
May 14, 2022

Photonics, Thermal, Propulsion & Energy

Laser-based wireless power transmission (LWPT) technology

Wireless power transfer (WPT), wireless power transmission, wireless energy transmission (WET), or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link. In a wireless power transmission system, a transmitter device, driven by electric power…...

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Rajesh Uppal
May 11, 2022

Human & Soldier Systems, Photonics

DARPA ENVision developing next-generation Night Vision Goggles (NVGs) which are compact, multi-band, and wide-FOV

For decades U.S. warfighters have benefitted from advanced night-vision technology, allowing pilots to fly low-level missions on pitch-black nights and ground forces to conduct operations against adversaries in the dark. Traditional Night Vision Goggle (NVG) systems provide the wearer with…...

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Rajesh Uppal
May 10, 2022

Photonics, Thermal, Propulsion & Energy

DARPA plans Laser-based wireless power transmission network on Battlefield

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Rajesh Uppal
May 5, 2022

Photonics, Space Technology, Defense & Exploration

CubeSat cameras and optical payloads for Earth Observation small satellites

Constellations of satellites are being proposed in large numbers; most of them are expected to be in orbit within the next decade. They will provide communication to unserved and underserved communities, enable global monitoring of Earth and enhance space observation.…...

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Rajesh Uppal
April 27, 2022

Mechanical, Nanotech, Photonics

Nano-opto-electro-mechanical systems (NOEMS)

Modern microelectronic semiconductors and integrated circuits provide remarkable computational and memory capabilities but lack the capability to interface with the physical world directly. MEMS (MicroElectroMechanical Systems) and the even smaller NEMS (Nano ElectroMechanical Systems) integrate sensors and actuators on microelectronic…...

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Rajesh Uppal
April 23, 2022

Industry & Market Dynamics, Photonics

Liquid crystal on silicon (LCoS or LCOS)

Flat-panel display technology is exploding on several fronts as more screens are required for more devices. CRT still works well for screen sizes up to 40 inches. But if you want a larger screen, a flat panel TV, widescreen model…...

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Rajesh Uppal
April 20, 2022

Photonics, Weapons & Munitions

Emerging ultrashort pulse laser (USPL) or Femtosecond laser directed energy weapons (DEW)

The Laser Directed Energy Weapons (DEWs) offer a transformational ‘game changer’ to counter asymmetric and disruptive threats, while facing increasingly sophisticated traditional challenges. Laser technology provides major advantages for military applications over kinetic weapons due to High precision and rapid…...

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Rajesh Uppal
April 7, 2022

Photonics, Thermal, Propulsion & Energy

Thermophotonics cooling with light-emitting diodes

Thermophotonics (often abbreviated as TPX) is a concept for generating usable power from heat which shares some features of thermophotovoltaic (TPV) power generation. Thermophotonics was first publicly proposed by solar photovoltaic researcher Martin Green in 2000. However, no TPX device…...

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Rajesh Uppal
March 29, 2022