宏观微观斯塔克效应优秀PPT.ppt
《宏观微观斯塔克效应优秀PPT.ppt》由会员分享,可在线阅读,更多相关《宏观微观斯塔克效应优秀PPT.ppt(10页珍藏版)》请在得力文库 - 分享文档赚钱的网站上搜索。
1、宏观微观斯塔克效应你现在浏览的是第一页,共10页线性、非线性斯塔克线性和非线性效应都同时存在,但弱场强时线性显著,强场时非线性(二次)对分裂起住到作用。y=ax+b(x2),对Halpha,ax和b(x2)的交点在10(5)V/cm估算太阳上可能的分裂线距量级(5mA0.5A)图There are actually two types of stark effect:the linear stark effect and the quadratic version of the stark effect.As expected,the linear stark effect is linear
2、ly dependant on the applied electric field while the quadratic stark effect is smaller in the value of splitting and varies as the square of the applied electric field.你现在浏览的是第二页,共10页纵向横向电场图你现在浏览的是第三页,共10页实测中的线偏振和圆偏振横向场观测只看到线偏振(吸收?发射?),偏振方向平行于横向电场;纵向场观测看到“非偏振”的圆偏振强度?sigma线的位置在pi线内侧。他们的相对强度计算?你现在浏览的是
3、第四页,共10页可以观测的对象考虑磁场的存在,将电场分解为平行磁场和垂直于磁场去寻找可观测量。1)验证电流片的存在(电流闭合假设);2)非完全冻结下,流场拖拽引起的霍尔电压(正负粒子分离),发向垂直于磁场;3)暗条系统的电场你现在浏览的是第五页,共10页你现在浏览的是第六页,共10页你现在浏览的是第七页,共10页观测仪器和观测方式谱线观测(不行?)两维滤光器快速扫描式滤光器你现在浏览的是第八页,共10页History of the Stark EffectWhen Zeeman discovered the effect of magnetic fields on the wavelength
4、s of emitted spectra from an excited gas,the Zeeman effect,it sparked a search for a similar effect due to electric fields.For fifteen years the search failed to show such an effect and as a matter of fact,Woldemar Voigt of Gttingen(known for the discovery of the Voigt effect)showed on a theoretical
5、 basis,with some assumptions,that no such effect should be expected.Experimental failure to find the effect of electric fields on emitted spectra was actually due to a very simple phenomenon.Excitation of atoms to show spectra was usually performed by passing an electric arc through a gas.The gas wo
6、uld be ionized allowing current to flow via motion of the freed electrons and collisions between electrons and ions or electrons and neutral atoms would excite the ions or atoms and then spectra would be visible as the ions or atoms decayed back down from their excited states.The problem is that app
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- 宏观 微观 斯塔克效应 优秀 PPT
限制150内