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The National Science Foundation (NSF) of the United States has awarded the University of Rochester nearly $18 million for three years to design and prototype key technologies for EP-OPAL, a new facility dedicated to studying the interaction between ultra-high intensity lasers and matter.After the design project is completed, the facility can be built at the Laser Energy Laboratory (LLE). This fund...
The chip based device, known as the frequency comb, measures the frequency of light waves with unparalleled accuracy, completely changing timing, detection of exoplanets, and high-speed optical communication.Now, scientists and collaborators from the National Institute of Standards and Technology in the United States have developed a new method for manufacturing combs, which is expected to improve...
An interdisciplinary research group, including the German synchrotron radiation accelerator DESY and the Helmholtz Institute in Jena, Germany, reported that invisible gratings made of air not only are not damaged by lasers, but also maintain the original quality of the beam. The relevant research has been published in Nature Photonics under the title of "Acousto opt modulation of gigawatt scale la...
The time/frequency unit is the most accurate among the seven basic units, so many measurement studies that pursue ultra-high accuracy and sensitivity will be transformed into frequency measurements to achieve higher measurement accuracy and sensitivity. For example, by measuring the relative changes in the ratio of different atomic transition frequencies, ultralight dark matter can be detected or ...
Organic solid-state lasers (OSLs) are expected to achieve widespread applications due to their flexibility, tunability, and efficiency. However, they are difficult to manufacture and require over 150.000 possible experiments to find successful new materials, and discovering them will be a work of several lifetimes. In fact, according to data from the University of Toronto in Canada, only 10-20 new...