A photonic integrated circuit (PIC) or integrated optical circuit is a device that integrates multiple (at least two) photonic functions and as such is similar to an electronic integrated circuit. The major difference between the two is that a photonic integrated circuit provides functions for information signals imposed on optical …
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Quantum cryptography is a hardware-based approach, which uses the properties of quantum mechanics such as quantum entanglement, and the no-cloning theory to secure data. Quantum cryptography solves the problem of key distribution by allowing the exchange of a cryptographic key between two remote parties with absolute security, guaranteed by the fundamental …
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The process of detecting light—whether with our eyes, cameras or other devices—is at the heart of a wide range of civilian and military applications, including light or laser detection and ranging (LIDAR or LADAR), photography, astronomy, quantum information processing, medical imaging, microscopy and communications. Light is also being used in …
Read More »The transmission loss of the light passing through the optical fiber is a very small value of less than 0.2 dB per km with a light wavelength in the 1,550 nm band. Therefore clearest optical fibers can transmit signals more than 100 kilometers without amplification-much farther than copper wires. When …
Read More »Optics is the branch of physics that studies the behaviour and properties of light, including its interactions with matter and the construction of instruments that use or detect it. Optics usually describes the behaviour of visible, ultraviolet, and infrared light. Because light is an electromagnetic wave, other forms of electromagnetic …
Read More »Optoelectronic technology is a new technology formed by the combination of photon technology and electronic technology. Optoelectronics is the field of technology concerned with electronic device application to the sourcing, detection and control of light. Optoelectronics is described as “a device that responds to optical power, emits or modifies optical …
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Directed energy refers to a technology that produces a beam of concentrated electromagnetic energy, including microwaves, radio waves, lasers, and particle beams. Some of the common product variants include high-energy laser weapons, high-power radiofrequency or microwave devices, and charged or neutral particle beam weapons. These weapons offer numerous benefits over conventional …
Read More »For centuries, light microscopy has greatly facilitated our understanding of how cells function. In fact, entire fields of biology have emerged from images acquired under light microscopes. Indeed, one major element that makes light microscopy so powerful in biological research is the development of various staining methods that permit the …
Read More »In the broadest sense a spectrometer is any instrument that is used to measure the variation of a physical characteristic over a given range; i.e. a spectrum. This could be a mass-to-charge ratio spectrum in the case of a mass spectrometer, the variation of nuclear resonant frequencies in an NMR …
Read More »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 caused by fragmenting ammunition, Low logistics overhead, and minimum costs per firing. The proliferation of small, low-cost Unmanned Aircraft Systems (UAS) on …
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