吸收谱线

In order to measure the tuning wavelength of a frequency-doubled Nd:YAG laser,strong absorption lines of molecular iodine near 532nm was adopted to provide the absolute reference for frequency stabilization.

为了精确测量倍频Nd：YAG激光器的调谐波长，采用碘分子在532nm附近的强吸收谱线作为频率稳定的绝对参考谱线，建立了以碘蒸气为标定物的激光调谐波长测定系统，实际测量了碘蒸气吸收谱线。

Molecular iodine has rich strong absorption lines near 532 nm that can provide the absolute references for frequency stabilization. A monolith solid laser was tuned at the spectrum of transition R (56) 32-0 of iodine molecule with new modulation frequency 375 kHz.

使用532 nm单块固体激光器，在375 kHz新的调制频率下，利用调制转移技术，将激光频率调谐到127I2的R(56)32-0跃迁的吸收谱线，并观察到该吸收谱线相应的15条超精细结构分量。

The laser frequency is stabilized by absorption spectrum line of atoms in magnetic field.

这种方法能够将激光频率稳定地锁在原子吸收谱线的峰值处，锁频后激光器不易失锁，用于激光冷却铷原子实验。

In stellar spectra, the H - epsilon line ( transition 7-2) is often mixed in with another absorption line caused by ionized

在恒星光谱中，H -ε线(7跃迁至2)经常会与其他的吸收谱线混合，天文学家都知道电离的

The analyzer may be used in quantitative measurement of concentration values of multiple gas components with superposed and crossed absorption spectral lines.

利用该分析仪可对吸收谱线相互重叠交叉的多组分混合气体进行浓度的定量测量分析。

This thesis describes the system of frequency stabilization of a Nd:YAG-KTP laser to Doppler-Broadened absorption lines of ?

本文论述了Nd：YAG-KTP碘分子多普勒展宽吸收谱线稳频系统。

In the system a HCN gas absorption cell has been used as wavelength reference.

为实现高精度光纤非本征法布里-珀罗传感器和布拉格光纤光栅波长解调，设计并实现了一种基于可调谐光纤激光器的光纤传感波长解调系统，系统采用具有51条吸收谱线的氰化氢气体吸收池为波长参考基准，采用三次多项式拟合的方法来确定可调谐光纤F-P滤波器的波长与驱动电压的对应关系。

Molecular iodine has several hundred strong absorption lines near 532nm,several absorption lines were observed by using single-frequeny Nd:YVO4/KTP laser. There are new absorption lines which are not included in the nine groups recommended by CCDM in 1997.The wavelengths of these lines have been measured and the frequency stabilization investigated.

碘分子在532nm附近有上百条强的吸收谱线，采用单频Nd：YVO4／KTP激光对碘的一些吸收谱线作了观测，并进行了激光频率稳定的研究，这些吸收谱线是1997年9月国际米定义咨询委员会推荐作为频标的9组532nm碘吸收谱线之外的新的参考谱线。

By simulating the absorption spectrum of molecule iodine absorption filter ranges from 470nm~550nm, this paper selects the absorption spectrum of molecule iodine absorption filter that satisfies the requirement of frequency discriminator in detecting system and ascertains the center emission frequency of laser emitter.

以基于边缘探测技术的激光雷达监测大气信道和海洋水下信道环境参数为例，通过仿真出碘分子吸收滤波器在470nm～550nm区间范围内的吸收光谱谱线，选择出合适的吸收谱线并确定发射激光信号的中心频率，并在此基础上，给出了满足探测要求的激光发射信号单稳频指标，为实际探测系统的设计奠定基础。

The results show that it is a suitable method for measuring tuning wavelength of frequency-doubled Nd:YAG laser by means of iodine vapor absorption lines.

标 签 光谱学调谐波长参考吸收谱线碘蒸气 spectroscopy tuning wavelength reference absorption lines iodine vapor

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。