论文部分内容阅读
纳米线用于微激光器和LED
【出 处】
：
激光与光电子学进展
【发表日期】
：
2006年43期
其他文献
Ba impurity in potassium dihydrogen phosphate (KDP) is studied with the first-principle simulation method. The relaxed configurations and density of the states of KDP crystal with Ba impurity are calculated. We find that Ba can generate a K vacancy and an
设计了一种基于表面等离子体（SP）效应的新型气体传感器及传感系统，该传感器由介质隔层金属光栅（MGS）构成，在气体折射率1.000~1.001的变化范围内，传感器平均折射率检测灵敏度高达3050 nm/RIU，是普通金属光栅型SP气体传感器的两倍多，而共振峰反射率和共振峰半峰全宽（FWHM）值分别为0.25%和4.2 nm。具有高灵敏度、高分辨率、使用安全、便于集成、可实现远程检测的特点，在气体折射率的检测中有重要的应用价值。
In watermarking schemes, watermarking can be viewed as a form of communication problems. Almost all of previous works on image watermarking capacity are based on information theory, using Shannon formula to calculate the capacity of watermarking. In this
Observation of spectral modulation coupled with broadband transverse-mode-locking in an Yb:CALGO fre
A frequency-degenerate cavity (FDC) is the resonator that the ratio of transverse and longitudinal mode frequency spacings is a simple rational number. When an optical resonator is close to the FDC, transverse-mode-locking (TML) takes place with drastic c
用脉冲输出功率50mW,中心波长为800nm的双异质结激光二极管列阵泵浦磷酸盐钕璃璃激光器,得到1.053μm波长激光输出.泵浦阈值功率为9mW.计算了DPL输出的尖峰功率、脉冲宽度和弛豫振荡波形,与实验结果一致.
In this paper, the Yb-doped superfluorescent fiber source (SFS) with cascaded broad fiber Bragg gratings (FBGs) are reported. The spectral properties of this SFS with cascaded broad FBGs are described and compared with that without cascaded broad FBGs. Th
本文报道了在K_2-K中通过双光子共振激发原子或双光子激发分子产生23∏g—a3∑ u扩散带辐射的实验结果,并对激发机制以及扩散带辐射随激发能量和温度的变化进行了讨论.
远紫外波段高反射薄膜的研究具有重要应用价值。为了实现高反射率,采用高温三步蒸发法沉积MgF2膜以保护Al膜,制备了远紫外宽带高反射薄膜,并对样品进行退火处理。结果显示,改进制备工艺和退火工艺后,紫外宽带高反射薄膜在121.6 nm处的反射率高达90%,接近理论设计值。同时分析了散射损耗的影响。采用优化的LaF3/MgF2膜系结构,制备了窄带反射滤光薄膜,其在中心波长122.5 nm处的峰值反射率为75%且半峰全宽为8 nm,达到了理论设计的预期效果,但退火处理损伤了薄膜表面,散射损耗增加,薄膜反射率下降。