【摘 要】
:
介绍了一种高效、高功率的新型微波激光抽运系统,分别对其两种形式——一字型微波波导抽运系统和十字型微波波导抽运系统的抽运电场作理论分析,并与相关文献报道的实验结果作一比较,理论计算与实验结果吻合得非常一致。
【机 构】
:
浙江大学近代光学仪器国家重点实验室杭州310027中国计量学院信息工程系杭州310034
论文部分内容阅读
介绍了一种高效、高功率的新型微波激光抽运系统,分别对其两种形式——一字型微波波导抽运系统和十字型微波波导抽运系统的抽运电场作理论分析,并与相关文献报道的实验结果作一比较,理论计算与实验结果吻合得非常一致。
其他文献
基于自发拉曼散射的光纤分布式温度测量系统是一种真正的分布传感系统且已商品化。 本文从光学的角度出发较详细地分析了此类系统的空间分辨力理论极限及其影响因素。 分析表明, 对于一个1 km的多模系统, 若接收机的最小可分辨光功率优于3.5pW, 则其在0~400℃的范围内且温度精度为±1℃时的空间分辨力极限为2cm; 当接收机的最小可分辨光功率小于0.5 pW, 单模系统的空间分辨力极限优于对应的多模系统。 因此, 把基于自发拉曼散射机理的光纤分布式温度测量系统用于短距离高分辨力的系统理论上是可行的。
本文报道实现半导体激光器连续频率跟踪和锁定的一种新方法:利用法拉第反常色散光学滤波器(FADOF)的透射谱作鉴频器,改变法拉第反常色散光学滤波器的磁场强度,实现频率跟踪和稳频.实验得到,当磁场从0.7×10-2 T变到2.2×10-2 T时,半导体激光器在~2 GHz范围内跟踪锁定,其频率稳定度优于2.1×10-10(100 ms≤τ≤10 s).
Microrobots-assisted drug delivery and surgery have been always in the spotlight and are highly anticipated to solve the challenges of cancer in situ treatment. These versatile small biomedical robots are expected to realize direct access to the tu
在应用可调谐半导体激光吸收光谱(TDLAS)技术的开放和密闭式气体检测中,提出一种基于无吸收谱线区域检测谐波(HDINASR)的背景消除方法。分析了背景信号成分,设计了背景信号搜索方法和谱线选取原则,给出相邻吸收谱线之间的最小波长间距公式。以氟化氢(HF)气体为检测对象,利用TDLAS实验系统设计相应的实验,确定HF目标吸收谱线、激光器工作温度、背景搜索温度范围和采样周期。实验结果表明,使用HDINASR背景消除前后的曲线相关度提高了3.4%,体积分数精度提高的相对幅度为5.8%。HDINASR为开放和密
The properties of Al-doped ZnO (AZO) play an important role in the photovoltaic performance of inverted polymer solar cells (PSCs), which is used as electron transport and hole blocking buffer layers. In this work, we study the effects of Al-doping level
Quantum sensing, along with quantum communications and quantum computing, is commonly considered as the most important application of quantum optics. Among the quantum-sensing experiments, schemes based on squeezed states of light are popular choices due
We measure the electromagnetic degree of temporal coherence and the associated coherence time for quasi-monochromatic unpolarized light beams emitted by an LED, a filtered halogen lamp, and a multimode He–Ne laser. The method is based on observing at the
Ultrasound-guided biopsy procedure for prostate cancer diagnosis, which is the current gold standard, involves quasi-random sampling of prostate tissue without any functional guidance. In this study, we discuss the possibility to augment the detection of