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Summary:To filter out infrared light from the driving light source in the extreme ultraviolet lithography (EUVL) light source system, a rectangular grating structure needs to be fabricated on the surface of the collection mirror. However, the collection mirror grating usually undergoes deformation during the manufacturing process, resulting in a decrease in filtering efficiency. The process errors...
As humanity enters a new era of computing, new small tools are needed to enhance the interaction between photons and electrons, and integrate electrical and photon functions at the nanoscale. Researchers have created a novel III-V semiconductor nanocavity that can limit light below the so-called diffraction limit, which is an important step towards achieving this goal.In the journal Optical Materi...
Rydberg atoms and molecules are characterized by having one or more electrons in highly excited bound states. Such atoms and molecules are said to be in “Rydberg states” and are also called “hollow” atoms and molecules. Rydberg states are useful for studying various phenomena arising in intense light–matter interaction that involve electronic excitation with an intens...
Laser cutting is a type of metal processing. In industry, there are three main cutting methods: mechanical cutting, thermal cutting, and a set of high-precision cutting methods. Laser technology belongs to the third category. The cutting in this method occurs due to the influence of the laser beam on the product. In fact, it is the molten metal produced by rapid pulse point melting and then blowin...
Scientists from Heriot Watt University in Edinburgh, Scotland have discovered a powerful new method for programming optical circuits, which is crucial for the delivery of future technologies such as unbreakable communication networks and ultrafast quantum computers."Light can carry a large amount of information, and optical circuits that use light instead of electricity are seen as the next majo...