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The appealing and enigmatic properties of biological surfaces inspire people that a smooth surface is not always the best. Currently, the patterns of microdimples have attracted more attentions since such closed texture cells are supposed to generate hydrodynamic pressure easily. The advanced manufacturing techniques provide precision and freedom for the fabrication of microdimples, which enables...
Micro-surface texturing design is becoming an important part of surface engineering since engineering practices and analyses have indicated that surface textures may significantly affect the tribological performance of contact interfaces. Advances in the manufacturing technologies of surface finishing and micro-machining, such as laser surface texturing, photolithography, and etching, LIGA process,...
An analytical model has been developed to predict the stress-induced birefringence for both circular and square windows. Our main result is that circular windows lead to minimum birefringence because of their symmetric geometry.
Laser performances for typical Yb-doped laser material of Yb:YAG is presented, especially for pulsed energy-storage operation mode. Based on criterion of amplified spontaneous emission (ASE), we present the optimum gain medium parameters for a 100 J-class diode-pumped solid-state laser based on Yb:YAG material.
We have developed the prototype facility of Shenguang III for the laser driven inertia confined fusion. The characteristics and recent progress of the facility was demonstrated. The facility using a new scheme of four-pass amplifiers, all-fiber front-end, compacted PEPC et al has provided primary target-shooting experimental operation and will provide crucial data for the design and construction of...
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