Photonics – Page 16 – International Defense Security & Technology

Quantum dots, the semiconducting nanocrystals enable efficient & cheaper displays, solar cells, and infrared cameras

February 17, 2023 Nanotech, Photonics Comments Off on Quantum dots, the semiconducting nanocrystals enable efficient & cheaper displays, solar cells, and infrared cameras

Driven by technology advances in solid-state optoelectronics, light-emitting diode (LED) lighting has been expanded to a wide range of applications in consumer electronics, automotive, architectural, and healthcare settings. Recently, there has been a drive to make lighting “smart” by incorporating internet of things (IoT) connectivity and machine learning-based artificial intelligence …

Nonlinear photonics or optics key enabling technology for imaging, high-speed data communication and optical computing

February 10, 2023 Material, Photonics Comments Off on Nonlinear photonics or optics key enabling technology for imaging, high-speed data communication and optical computing

Nonlinear optics is a part of optics, dealing with various kinds of optical nonlinearities e.g. in nonlinear crystal materials (including both dielectrics and semiconductors) or in optical fibers and other waveguide devices. Nonlinear effects with light are those where e.g. twice the optical input intensities does not simply result in …

Optical or Photonic switches are key devices for meeting data traffic growth in optical networks and data centres

February 9, 2023 Industry, Manufacturing, Photonics Comments Off on Optical or Photonic switches are key devices for meeting data traffic growth in optical networks and data centres

Switches are important components of any communications network. Switches are found inside network-connected devices and used to change data transmission paths when transmitting data between devices. By quickly changing the transmission pathway and sending data only to relevant devices, the total load on the network can be reduced. Optical …

Non-Linear Optical Materials and Applications

February 6, 2023 Industry, Material, Photonics Comments Off on Non-Linear Optical Materials and Applications

Nonlinear optical (NLO) materials have long been known to interact with light, to produce a nonlinear response. Nonlinear optical materials use nonlinear dependence of the refraction index on the applied electric field to produce other frequencies. This results in either harmonic generation or frequency shifting. The development of the field was …

DARPA MuS2 developing Muon Source to detect shielded nuclear contraband, to objects deeply buried up to thousands of meters below the earth’s surface

February 3, 2023 Photonics, Space Comments Off on DARPA MuS2 developing Muon Source to detect shielded nuclear contraband, to objects deeply buried up to thousands of meters below the earth’s surface

Muons are subatomic particles that behave a lot like electrons but are around 200 times heavier. As the US Department of Energy explains, “Muons created in the atmosphere constantly hit every inch of the Earth’s surface and pass through almost any substance.” Many scientists have noted that measuring the …

DARPA developed Battlefield Illusion for deception Electro-Optical Warfare

January 31, 2023 BioScience, Photonics Comments Off on DARPA developed Battlefield Illusion for deception Electro-Optical Warfare

Magicians and generals have had a long-standing relationship – one that produced very real effects during wartime. Harry Houdini snooped on the German and the Russian militaries for Scotland Yard. English illusionist Jasper Maskelyne is reported to have created dummy submarines and fake tanks to distract Rommel’s army during World …

Optical and Laser Illusions

January 30, 2023 BioScience, Photonics Comments Off on Optical and Laser Illusions

Optical illusions (or visual illusions) are tricks that your mind plays on you based on what you think you are seeing. The image that is being visually perceived is deceptive and does not tally with actual reality. So what you are seeing and what comes out after being processed by the …

High Resolution Quantum enhanced LIDAR technology can detect Stealth Aircrafts

January 28, 2023 Photonics, Quantum Comments Off on High Resolution Quantum enhanced LIDAR technology can detect Stealth Aircrafts

Quantum technology (QT) applies quantum mechanical properties such as quantum entanglement, quantum superposition, and No-cloning theorem to quantum systems such as atoms, ions, electrons, photons, or molecules. Quantum bit is the basic unit of quantum information. Whereas in a classical system, a bit is either in one state or the another. …

3D camera technology for computer vision and Metaverse Applications

January 24, 2023 Photonics Comments Off on 3D camera technology for computer vision and Metaverse Applications

A regular (non 3D) camera records images either as a still photograph or as moving images known as videos or movies, which in turn are stored in a physical medium such as in a digital system or on photographic film. A camera comprises a lens which focuses light from the …

Laser 3D scanning for fast prototyping of Military systems, reverse engineering, virtual reality, maintenance support and quality control

January 8, 2023 Manufacturing, Photonics Comments Off on Laser 3D scanning for fast prototyping of Military systems, reverse engineering, virtual reality, maintenance support and quality control

3D laser scanning is a way to capture a physical object’s exact size and shape into the computer world as a digital 3-dimensional representation. 3D Laser Scanning is a non-contact, non-destructive technology that digitally captures the shape and structure of physical objects in a faster and more accurate way using …