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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...
A new automated method for spectral background estimation in laser spectroscopy ensures the accuracy of quantitative analysis with minimal human intervention.When using laser-induced breakdown spectroscopy in spectral analysis, scientists may encounter various obstacles. The most common challenge faced by scientists when conducting elemental analysis is to optimize the interaction between the lase...
A group of researchers from the Max Planck Institute of Optoelectronics has made a significant breakthrough in using laser cooling to travel sound waves. This development brings us one step closer to the quantum ground state of sound in waveguides, which is of great significance for quantum communication systems and future quantum technology.By using laser cooling, scientists can significantly red...
Topological laser (TL) is a laser device designed and manufactured using the principles of topological optics, which can produce a robust single-mode laser and is an ideal light source for future new optoelectronic integrated chips. Electrically pumped topology lasers have become a research hotspot due to their small size and ease of integration, but topology lasers based on electrical injection a...
AbstractDue to the width of the laser melt pool and the sintering effect on the surrounding powder, the experimental size of the selective laser melting (SLM) sample will be larger than the design size, which will greatly affect the dimensional accuracy and surface quality of the thin-walled sample. In order to obtain SLM thin-walled TC11 specimens with precise dimensions, an orthogonal experiment...