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A muffler is a key component of a car's exhaust system, designed to reduce noise levels and emissions. The vibration of a muffler can have a significant impact on its performance and life. In order to understand the performance and behavior of the muffler, it is necessary to make multi-point vibration measurement. First, it enables engineers to assess the structural integrity and durability of a m...
In November 2024, based on the mutual trust and cooperation over the past years, the Munich Shanghai Optical Expo and the Light Academic Publishing Center of the Changchun Institute of Optics, Precision Mechanics and Physics, Chinese Academy of Sciences (hereinafter referred to as the "Light Center") reached a consensus on further strategic development as they ushered in the year of disruptive sci...
The optical properties of photonic crystals are closely related to their lattice constants, which are usually required to be in the same order of magnitude as the operating wavelength. In a crystal material, the photonic crystal structure is formed by the periodic arrangement in space of units whose dielectric constant is different from that of the crystal itself, and whose lattice constant depend...
Alpes Laser was founded in 1998 in Nazhatel, Switzerland and was the first company to bring quantum cascade lasers to the market. It released its first continuous laser in 2001 and its first high gain laser in 2009, thus maintaining this priority position.In 2004, the first commercial laser was introduced.Principle: In a single mode laser, the grating is etched into the active region to force the ...
Researchers have developed a new method of making micro stretchable antenna with water gel and liquid metal. These antennas can be used for wearable and flexible wireless electronic devices to provide links between devices and external systems for power transmission, data processing, and communication.Using our new manufacturing method, we have demonstrated that the length of liquid metal antennas...