Meßvorrichtung für die Messung der absoluten Polarisation von Alkaliatomen sowie Verfahren zum Betreiben der Meßvorrichtung

OPT OpenIR > 半导体激光器专利数据库

	Meßvorrichtung für die Messung der absoluten Polarisation von Alkaliatomen sowie Verfahren zum Betreiben der Meßvorrichtung
其他题名	Meßvorrichtung für die Messung der absoluten Polarisation von Alkaliatomen sowie Verfahren zum Betreiben der Meßvorrichtung
	APPELT STEPHAN; SHAH NADIM JONI; ÜNLÜ TIMUR
	2001-05-23
专利权人	FORSCHUNGSZENTRUM JÜLICH GMBH
公开日期	2001-05-23
授权国家	德国
专利类型	授权发明
摘要	The invention concerns a device for the determination of the absolute polarisation of alkali metal atoms. The device can inter alia be used for the diagnosis of alkali metal polarisation in a polariser for inert gases. The device includes a detection laser, which together with a lambd/4 plate creates circularly polarised light. A sensor for the measurement of the light absorbed by the sample of the polariser is provided. A Helmholtz coil pair serves for the creation of a static magnetic field B0. An oscillating magnetic field is created with an RF coil. A gradient coil serves for the creation of a linear magnetic field gradient. Various optical components are present. An electronic processor effects the determination of the absolute polarisation of the alkali metal atoms. All the said components with the exception of the Helmholtz coils are firmly mounted onto a platform which can be moved parallel to the direction of the B0 field. Means for controlling the temperature of the laser for the detection of the polarisation of the alkali metal atoms are provided. The means for controlling the temperature of the laser for the detection of the polarisation of the alkali metal atoms include a temperature sensor, with which the temperature of the laser is measured, a heating/cooling device, with which the laser is heated or cooled, and also a control device, which controls the heating/cooling device depending on the measured temperature of the laser, so that the temperature of the laser is held constant. Compared to the state of the art, faster and better measurement results can thus be achieved.
其他摘要	本发明涉及一种测定碱金属原子绝对极化的装置。该装置尤其可用于在惰性气体的极化器中诊断碱金属极化。该装置包括检测激光器，其与λ/ 4板一起产生圆偏振光。提供了一种用于测量由偏振器的样本吸收的光的传感器。亥姆霍兹线圈对用于产生静磁场B0。利用RF线圈产生振荡磁场。梯度线圈用于产生线性磁场梯度。存在各种光学组件。电子处理器影响碱金属原子的绝对极化的确定。所有上述组件除亥姆霍兹线圈外，它们牢固地安装在平台上，平台可以平行于B0场的方向移动。提供了用于控制激光温度以检测碱金属原子的极化的装置。用于控制激光器温度以检测碱金属原子极化的装置包括：温度传感器，用于测量激光器的温度;加热/冷却装置，用于加热或冷却激光器，以及控制装置，其根据测量的激光温度控制加热/冷却装置，使得激光器的温度保持恒定。与现有技术相比，因此可以实现更快和更好的测量结果。
授权日期	2001-05-23
申请日期	1999-06-18
专利号	DE19928032C2
专利状态	失效
申请号	DE19928032
公开（公告）号	DE19928032C2
IPC 分类号	G01N21/01 \| G01N21/21 \| G01N21/17 \| A61B5/055 \| G01J3/10 \| G01J3/45 \| G01N24/08 \| H01S3/034 \| H01S3/04
专利代理人	-
代理机构	-
文献类型	专利
条目标识符	http://ir.opt.ac.cn/handle/181661/36581
专题	半导体激光器专利数据库
作者单位	FORSCHUNGSZENTRUM JÜLICH GMBH
推荐引用方式 GB/T 7714	APPELT STEPHAN,SHAH NADIM JONI,ÜNLÜ TIMUR. Meßvorrichtung für die Messung der absoluten Polarisation von Alkaliatomen sowie Verfahren zum Betreiben der Meßvorrichtung. DE19928032C2[P]. 2001-05-23.

条目包含的文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
DE19928032C2.PDF（699KB）	专利		开放获取	CC BY-NC-SA	请求全文