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The current deep neural network system (such as ChatGPT) can quickly improve energy efficiency by 100 times in training, and "future improvements will greatly increase by several orders of magnitude. Scientists from MIT and other institutions have demonstrated a new optical neural network training method that can crush state-of-the-art electronic microprocessors.Moreover, the computational density...
The pump source, gain material, and resonant cavity are the three elements that make up a laser. Due to the selective effect of the resonant cavity on the lasing frequency, multi longitudinal mode operation is one of the characteristics of fiber lasers based on traditional resonant cavity structures, manifested as periodic beat peaks in the radio frequency (RF) spectrum and periodic fluctuations i...
Recently, high-power blue laser manufacturer NUBURU announced the official launch of a working group consisting of a joint management team from the company and the target defense technology enterprise, which was part of the previous acquisition plan. According to the joint research and development agreement signed by NUBURU in March, the working group will also be responsible for overseeing the ...
Neptunium is the main radioactive component of nuclear waste, with a complex atomic structure that can be explored through mass spectrometry. This analysis is crucial for understanding its inherent characteristics and determining the isotopic composition of neptunium waste. Magdalena Kaja and her team from Johannes Gutenberg University in Mainz, Germany have developed a novel laser spectroscopy te...
Recently, an international research team led by Professor Zhang Peilei from the School of Materials Science and Engineering at Shanghai University of Engineering and Technology published a review paper titled "Research status of femtosecond lasers and nanosecond lasers processing on bulk metallic glasses (BMGs)" in the renowned journal Optics&Laser Technology in the field of optics and lasers....