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The Near Infrared Red Planet Search Alliance, jointly managed by the Department of Astronomy at the University of Geneva and the University of Montreal, has received cutting-edge advances in CSEM laser frequency comb technology.The laser frequency comb is a precise and stable light source designed to help the NIRPS alliance unravel the mysteries of distant planets, including the possibility of sea...
A mode-locked laser is an advanced laser that can generate very short optical pulses with durations ranging from femtoseconds to picoseconds. These lasers are widely used for studying ultrafast and nonlinear optical phenomena, but they have also been proven to be applicable to various technological applications.Researchers at the California Institute of Technology have recently been exploring the ...
IntroductionThe small hole mode swing laser welding has gained increasing recognition due to its ability to bridge gaps, refine microstructures, and enhance the mechanical properties of welds. However, the effects of amplitude, frequency, welding speed, laser beam power, and beam radius on heat flux distribution, melting mode, and three-dimensional temperature field have not been well understood. ...
Recently, a research team from the School of Physics and Optoelectronic Engineering at Jinan University has elucidated for the first time the time-dependent quantum mechanism of two-photon absorption and proposed a two-photon absorption (fpTPA) optical nanoprinting technology based on few photon irradiation, successfully breaking through the bottleneck of traditional two-photon printing technology...
According to research from Busan National University, inorganic perovskite materials are easy to prepare and process, making them suitable for manufacturing lasers.The perovskite of interest is CsPbBr3, which must form "nanosheets" within the specific structure invented by the Busan team to obtain sufficient laser gain.It is not that the laser has been achieved, as the research project aims to cha...