Charge gradient microscopy

  • Seungbum Honga, Sheng Tongb, Woon Ik Parka, Yoshiomi Hiranagac, Yasuo Choc, Andreas Roelofsb
  • Published 2014


Here we present a simple and fast method to reliably image polarization charges using charge gradient microscopy (CGM). We collected the current from the grounded CGM probe while scanning a periodically poled lithium niobate single crystal and single-crystal LiTaO3 thin film on the Cr electrode. We observed current signals at the domains and domain walls… (More)


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