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中国激光1987年第14卷第11期 目录
【出 处】
:
中国激光
【发表日期】
:
1987年14期
其他文献
This work reports a demonstration of electrically injected GaN-based near-ultraviolet microdisk laser diodes with a lasing wavelength of 386.3?nm at room temperature. The crack-free laser structure was epitaxially grown on Si substrates using an Al-compos
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通过进行工艺参数(激光功率、扫描速度和送粉速率)可控的单道激光熔覆实验,观察了沉积轨迹横截面形貌的变化;提出了单一参数(δ参数,δ=wtan β/2h)控制的横截面形貌曲线方程。根据横截面几何特征参数:沉积轨迹宽度w、高度h、面积F和沉积角β的测量数据,用回归处理方法,给出了δ参数与横截面名义面积Fm(Fm=wh)之间的函数关系,得到了横截面形貌随Fm的变化规律;同时用F和β的测量数据验证了横截面形貌曲线方程。
The heterogeneous integration of silicon thin film and lithium niobate (LN) thin film combines both the advantages of the excellent electronics properties and mature micro-processing technology of Si and the excellent optical properties of LN, comprising
The characteristic equation of orbital angular momentum modes in a ring fiber is derived. By solving the equation with the graphical method, mode distribution in a ring fiber can be precisely determined for arbitrary fiber parameters without relying on si
本文用统计光学方法推导了由两个漫射体形成的串级散斑场的统计性质。得出了漫射体的运动速度v与相关时间τc成线性的关系,讨论了经过三次随机调制的串级散斑场的斑纹平均半径较之一次调制斑纹半径为小。理论与实验结果符合得很好。
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Modulation characteristics and microwave generation for AlGaInAs/InP microring lasers under four-wav
The dynamic characteristics are investigated for a microring laser with an external radius of 12 μm subject to external optical injection. Single-mode operation with a side mode suppression ratio of 33.4 dB is realized at a biasing current of 25 mA and a
首次定量地研究了氧对F2/H2链反应化学激光谱线输出数目、单谱线出现时间和谱线强度的影响。各振动能级的单谱线出现次序均呈现正J移规律。v=1至v=6的转动能级都存在非平衡分布。实验测定到P6(4)→P1(9)和P6(6)→P1(11)激光的级联跃迁。模型计算结果与实验结果相当符合。
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