可见光激光二极管开发现状与市场——市场状况

本文是可见光激光二极管开发现状与市场的最后部分,主要介绍器件应用领域,产销量,价格与趋势.     

钨在硅和氮化钛上的激光化学汽相沉积实验研究

本文介绍了用激光化学汽相沉积的方法在Si和TiN基板上沉积钨的实验研究。沉积过程由反射率探测法实时监测,实验结果表明:钨的沉积速率依赖于WF_6和H_2的比例、压力、激光功率和基板的物理性质。实验得到了3μm宽的钨膜。     

Directional laser generation and detection of ultrasound with arrays of optical fibers

Some aspects of the generation and detection of ultrasound with laser beams are presented. The objective of the study is (1) to present some experimental results on the generation of ultrasound with an array of optical fibers, (2) to discuss the possibility of generating directional surface waves with acousto-optic scanning in a very narrow frequency band, thus increasing the signal-to-noise ratio, and (3) to discuss the feasibility of the directional detection of ultrasound by using an array of optical fibers as a receiver, also with the goal of increasing the signal-to-noise ratio.     

Theoretical Studies of the Output Pulse with Variation of the Pumping Pulse for RF Excited CO2 Pulsed Waveguide Laser

The behavior of a RF-excited waveguide CO2 laser in the pulse regime is studied theoretically. The output pulse evolution is studied by applying three types of pulses namely the square, sine and the triangular ones as the excitation pulses. The frequency dependence behavior of the output pulse is also presented.     

激光束与光纤耦合优化取值及应用

运用衍射光学元件技术的进步,分析激光束与光纤的耦合特性。研究和实验光束用光纤传输的优化参数取值及相关因素。讨论光束变换的激光柔性加工PCB中的应用。     

Speckle-Field Emitted from Multimode Optic Fiber and Its Application

The properties of speckle-field emitted from a single multim-ode optic fiber (SMOF) and multimode fiber-optic boundles (MFOB) underillumination of He-Ne laser light are presented. The difference among thepeckle-fields emitted from MFOB which consist of fibers with differentcore diameters is dis cussed, and compared with the speckle-fields of a frot-ted glass plate. The applicability of specklc-field in optic measurement andinformation processing, and the rightness of conclusions have been provedby experiments.