Photonics

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 on-target effect, precise and scalable effects,  avoidance of collateral damage …

Smart glasses refer to wearable computing devices that add information to what the user sees. These devices function in a way similar to mobile phones and tablets and have the ability of processing and implementing various programs and applications. A majority of the smart glasses currently used in the market …

Optical atomic clocks are at the pinnacle of time measuring devices, losing less than one second every ten billion years. Currently though, they are massive devices, weighing hundreds of kilograms. In order to have an optimal practical function that could be utilised by your average person, their size needs to …

A reliable long-distance and high-speed underwater communication link plays an important role in the undersea exploration and data collection. At present, the most widely used underwater communication method is still dominated by underwater acoustic communication. Although it can reach the transmission distance of several kilometers and more, the data rate …

It is predicted that LEDs will be the ultimate light source in the near future powering indoor illumination, outdoor lamps, traffic signs, advertising displays, car headlights/taillights, etc. Li-Fi, or light fidelity, promises to double the utility of light-emitting diodes (LEDs) by using their light as a medium to deliver networked, …

The quantum cascade laser is a special kind of semiconductor laser, usually emitting in the mid- and long-wave infrared bands. Such a laser operates on laser transitions not between different electronic bands but on intersubband transitions of a semiconductor structure.  Their wide tuning range and fast response time allow for faster …

The fiber optic sensors also called as optical fiber sensors use optical fiber or sensing element.  These Sensors can measure a large variety of parameters, such as temperature, pressure, strain, refractive index, vibrations, displacements, bending, loading, and liquid level or concentration of chemical species.   Over the past decade, optical …

Laser attacks targeting pilots and air crews are a major concern across the world with most attacks reported to take place during take-off and landing. According to figures from the US Federal Aviation Authority, there were 6,753 laser illuminations reported in 2017. Until recently, the expense of lasers had limited their use …

The  drones have emerged as a major new threat to civilian infrastructure and military.  The militant organizations have started employing drones to further their terrorism. Jihadi groups fighting the Syrian government – most notably ISIS and Jabhet al-Nusra – are extensively using advanced drones to pinpoint the Syrian Army’s locations, …