Advanced split-illumination electron holography without Fresnel fringes

作者：Tanigaki Toshiaki^*; Aizawa Shinji; Park Hyun Soon; Matsuda Tsuyoshi; Harada Ken; Shindo Daisuke

来源：Ultramicroscopy, 2014, 137: 7-11.

DOI：10.1016/j.ultramic.2013.11.002

• Electron holography
• Split illumination
• Fresnel fringes
• Double biprism

Advanced split-illumination electron holography was developed by employing two biprisms in the illuminating system to split an electron wave into two coherent waves and two biprisms in the imaging system to overlap them. A focused image of an upper condenser-biprism filament was formed on the sample plane, and all other filaments were placed in its shadow. This developed system makes it possible to obtain precise reconstructed object waves without modulations due to Fresnel fringes, in addition to holograms of distant objects from reference waves.

• 出版日期2014-2