Summary A Gaussian beam is an electromagnetic beam, such as light, with a field distribution that conforms to a Gaussian function, similar in shape to a normal distribution. Its fundamental mode, the ...

Overview A German-Spanish team of researchers worked on a metamaterial structure that allows for the conversion of high-end Gigahertz frequencies to Terahertz frequency waves and allows for ...

Summary Fast Steering Mirrors or adaptive optics are precision-controlled, rapidly adjustable mirrors, crucial in Free Space Optics (FSO) systems for stabilizing and directing laser beams over long ...

Heterodyne Detection Heterodyne detection, also known as coherent detection, is a method used in Free Space Optics (FSO) to enhance signal detection. It works by combining an incoming optical signal ...

Coherent Light Sources Coherent light sources are lasers that emit light with a high degree of coherence, meaning the light waves are in phase both spatially and temporally. In the context of CV-QKD ...

Overview Researchers at the McKelvey School of Engineering, Washington University in St. Louis, are developing a novel quantum photonic-dimer laser that leverages quantum entanglement to enhance laser ...

Summary Continuous Variable Quantum Key Distribution (CV-QKD) is a type of quantum key distribution (QKD) protocol that uses continuous variables, such as the quadratures of the electromagnetic field, ...

Summary Discrete Variable Quantum Key Distribution (DV-QKD) uses quantum mechanics as a method for distribution of encryption keys for secured communications. QKD can provide improved resistance to ...

OverviewThe ESA Transportable Optical Ground Station (ETOGS) is a shipping container sized portable laser ground station testbed for use with satellites such as NASA's Psyche mission. Potential use ...

Summary The H-IIA Launch Vehicle No. 47 launched JAXA's X-Ray Imaging and Spectroscopy Mission (XRISM) and the Smart Lander for Investigating Moon (SLIM) September 7th 2023. XRISM XRISM is an X-ray ...