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Due to the increasing threat of space debris in low Earth orbit around the Earth, space agencies around the world are becoming increasingly concerned about this. According to a new study funded by the National Aeronautics and Space Administration (NASA), it may be possible to send space debris that may be at risk of colliding with orbiting spacecraft to safer orbits through a laser network deploye...
The rapid development of intelligent cars and autonomous driving technology has made millimeter wave radar inconspicuous, and the widespread application of millimeter wave radar has driven the technological evolution of MMIC.From the expensive gallium arsenide (GaAs) process in the early days to the mainstream CMOS and SiGe processes today, and then to the future promising FD-SOI process, the cont...
Just ten years ago, fiber laser cutting machines were considered experts in thin plates. The stores quickly realized that they had to invest in them to compete, at least by reducing their instrument materials. For high-quality sheet metal cutting, CO2 laser is still the way to go. Of course, fiber lasers can cut thicker blanks, but the quality is not very good, and their speed advantage almost dis...
A team of computer and electrical engineers at UC Santa Barbara, in collaboration with several colleagues at Caltech and another colleague at Anello Photonics, has developed a first-of-its-kind chip that can carry both laser and photonic waveguides. In a paper published in the journal Nature, the team describes how they made the chip and how it worked during testing.With the advent of integrated c...
As is well known, the outer planets of our solar system, Uranus and Neptune, are gas giants rich in water. The extreme pressure on these planets is 2 million times that of the Earth's atmosphere. Their interiors are also as hot as the surface of the sun. Under these conditions, water exhibits a strange high-density ice phase.Researchers have recently observed one of the stages, called Ice XIX, whi...