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Archaeologists have long wondered why the people of Anglo Saxon England began using more silver coins and fewer gold coins between 660 and 750 AD. Researchers in Europe now say they have developed a method to help find the answer. This technology combines laser ablation with traditional trace element analysis to match the isotopic abundance of silver bars in coins with known sources of metal ores ...
In the interaction between ultra short and ultra strong lasers and matter, short pulse width and high energy electrons are generated, commonly referred to as "hot electrons". The generation and transport of hot electrons is one of the important fundamental issues in high-energy density physics of lasers. Superhot electrons can excite ultrafast electromagnetic radiation in a wide range of wavelengt...
Laser solder paste is a new type of high-tech laser soldering material that is widely used. Laser solder paste achieves high-precision control of circuit board soldering through laser heating in the electronic manufacturing process. This article will provide a detailed introduction to the working principle of laser solder paste and its applications in fields such as electronic manufacturing and au...
In industrial production, cleaning is a crucial step. Traditional cleaning methods, such as mechanical cleaning and chemical cleaning, although can meet production needs to a certain extent, often have problems such as low flexibility and environmental pollution. With the advancement of technology, laser cleaning technology has emerged as a new favorite in the cleaning field due to its high effici...
Lithography is one of the core processes in semiconductor manufacturing, and extreme ultraviolet lithography technology, as a new generation lithography technology, is also in a rapid development stage. The basic principle is to use photoresist (also known as photoresist) to form corrosion resistance due to photochemical reactions after being photosensitive, and to engrave the patterns on the mask...