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Rajesh Uppal

Nanolasers emerging technology for  optical interconnects, near-field spectroscopy and sensing, optical probing for biological systems, microprocessors and quantum circuits

Lasers are widely used in household appliances, medicine, industry, telecommunications and more.  A nanolaser is a laser that has nanoscale dimensions. These tiny lasers can be modulated quickly and, combined with their small footprint, this makes them ideal candidates for on-chip optical computing.   Several years ago, scientists introduced nanolasers …

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New efficient, high brightness, and tunable Quantum cascade laser (QCL)s technologes from mid-wave infrared (MWIR) to Terahertz region promise chemical warfare agents & hidden explosives detectors, to infrared countermeasure (IRCM) systems

Compact, chip-based lasers have conquered much of the electromagnetic spectrum, from ultraviolet to infrared, enabling technologies from digital communications and barcode readers to laser pointers and printers. Diode lasers depend on the process of electron-hole recombination: an electron from the conduction band recombines with a hole in the valence band, …

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Indian Threat Scenario, National security threats and future military capability requirements

There are two approaches to connect Warfighting and emerging technologies. One is to consider the present and future threat environment and then through system analysis we can identify technologies required to mitigate those threats. Secondly, we can identify the emerging technologies that can offer new military capability.   Coming to …

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Efficient Piezoelectric technologies for aerospace and defense smart sensors, smart skin, smart combat suits, and energy harvesting

Advanced sensors and actuators, together with exponential improvements in computer technology, are causing a surge of interest in the development of “intelligent” structures and equipment. A smart structure consists of four key elements: actuators, sensors, control strategies, and power conditioning electronics. Numerous applications  include automotive springs, smart skins on aircraft, smart …

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Antigravity Technology and Military’s anti-gravity research programmes including Disclosure Project

In Newton’s law of universal gravitation, gravity was an external force transmitted by unknown means.  In the 20th century, Newton’s model was replaced by general relativity where gravity is not a force but the result of the geometry of spacetime. Under general relativity, gravity is the result of following spatial geometry …

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US Army’s Robotic and Autonomous Systems (RAS) Strategy for gaining for gaining overmatch in future high-intensity conflicts

As both artificial intelligence and autonomous systems advance at an astonishing rate, scientists and military leaders alike are working through the complexities to determine the best ways of implementing them on the modern battlefield. The accelerating arms race in Artificial Intelligence and the diffusion of cheap, technologically advanced military systems among …

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Militaries require next generation ESM /ELINT systems to counter sophisticated LPI, agile, Ultrawideband, VHF long-range early warning Radar threats

Electronic Warfare EW, encompasses, in all battle phases, military actions involving the use of EM energy to determine, exploit, reduce or prevent hostile use of EM spectrum and the actions, which retain friendly use of the EM spectrum. EW consists of three related sectors, viz., Electronic Protection (EP), Electronic Attack …

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Ships require Attitude Stabilization System for Satellite Tracking Antenna

In the age of information technology, mobile data communication has become essential due to its convenience. A major role of mobile communication networks is to provide ubiquitous broadband services. Regardless of the actual position of the antenna on earth, it is always possible to make contact with a communication satellite. …

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DARPA’s DREaM developing new RF/mm-wave transistors to enable future Military 5G communications, surveillance, signal intelligence (SIGINT), electronic warfare (EW), and electronic countermeasures (ECM)

DARPA has long recognized the critical role transistors play in Department of Defense (DoD) systems – especially radio frequency (RF) systems ranging from radar and communications to signals intelligence and electronic warfare. In the 1990s, the DARPA MIMIC program advanced Gallium Arsenide (GaAs) transistor technology that enabled the radar and …

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Laser stabalization and tracking technologies for moving platform mounted Directed Energy Weapons (DEWs)

The  drones have emerged as a major new threat to civilian infrastructure and military. Counter-drone technology, also known as counter-UAS, C-UAS, or counter-UAV technology, refers to systems that are used to detect and/or intercept unmanned aircraft. One of the attractive Anti-drone weapons have been directed energy weapons (DEWs) both of …

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