Supporting info

  • ZHANG Fu-Chun, ZHANG Zhi-Yong, ZHANG Wei-Hu, YAN Jun-Feng, YUN Jiang-Ni

    2008, Vol. 66(16): 1863-1868

    (a Xi’an Institute of Optics and Precision Mechanics, Acadecmia sinicChinse Academy of Sciencesa, Xi’an 710068)
    (b College of Physics & Electronic Information, Yan’an University, Yan’an 716000)
    (c Information sScience and tTechnology Institution, Northwest University, Xi’an 710127)