CAJ | 학술논문

在北京同步辐射装置(BSRF)设计建造了一套基于多层膜偏振元件的软X射线偏振测量分析装置,可工作在双反、双透、前反后透和前透后反四种工作模式,既可作为偏振测量装置,用于同步辐射光束线和多层膜偏振元件偏振特性测量,也可作为通用反射率计,用于多层膜和薄膜的反射或透射率测量,又可用于磁性材料的磁光效应研究等.利用自行研制的装置和光学元件对BSRF的3W1B光束线的偏振特性进行了系统的测量.测量结果指出,在206 eV时,输出光的线偏振度从起偏前的O.585上升到起偏后的0.995,同步光的线偏振度得到极大改善.利用非周期宽带Mo/Si多层膜开展了铁磁性材料的磁光法拉第效应测量,获得了Ni薄膜3p边附近(60-70 eV)的法拉第旋转角度,最大偏转角度在65.5 eV和68 eV分别为1.85±0.19°和-0.75±0.09°.
재북경동보복사장치(BSRF)설계건조료일투기우다층막편진원건적연X사선편진측량분석장치,가공작재쌍반、쌍투、전반후투화전투후반사충공작모식,기가작위편진측량장치,용우동보복사광속선화다층막편진원건편진특성측량,야가작위통용반사솔계,용우다층막화박막적반사혹투사솔측량,우가용우자성재료적자광효응연구등.이용자행연제적장치화광학원건대BSRF적3W1B광속선적편진특성진행료계통적측량.측량결과지출,재206 eV시,수출광적선편진도종기편전적O.585상승도기편후적0.995,동보광적선편진도득도겁대개선.이용비주기관대Mo/Si다층막개전료철자성재료적자광법랍제효응측량,획득료Ni박막3p변부근(60-70 eV)적법랍제선전각도,최대편전각도재65.5 eV화68 eV분별위1.85±0.19°화-0.75±0.09°.
A soft X-ray polarimeter with multilayer was developed at the Beijing Synchrotron Radiation Facility (BSRF). The polarimeter was designed to utilize reflection and transmission geometry,and it has four operational modes. Some experiments have been performed by using this polarimeter with various modes. Polarization properties of Mo/Si and Cr/C multilayer were measured,and polarizing characteristics of the Beamline 3W1B were measured systemically at BSRF. The degree of linear polarization is up to 0.995 from 0.585 at 206 eV when the beam is polarized by multilayer optical elements. We also measured magneto-optical Faraday rotation around the M_(2.3) edges (60-70 eV) of Ni film. The results demonstrate that the Faraday rotation angles are obviously large around Ni M_(2.3) edges,the rotation angles are 1.85±0.19° and -0.75±0.09°at the energy 65.5 eV and 68 eV,respectively.