DPC stands for Differential Phase Contrast, and the qDPC plug-in integrates DPC signals to obtain a phase contrast image. The qDPC gives a boundary-artifact-free solution using DCT (Discrete Cosine Transform) contrary to the solution given by FFT (Fast Fourier transform).
The qDPC works with 4D STEM or Segmented Detector module and gives the phase image in real-time (or on-line).

4D STEM module for qDPC (the license for 4D-STEM module is required) Read More

Segment Detector (SD) module (the license for SD module is required) Read More

Flyer/Specifications

• pdf format

Manual

• Simple Instruction
• Manual (pdf)

References and Technical Notes (*Basic Readings)

• * A. Ishizuka and K. Ishizuka: Observation of Phase Objects using STEM – Differential Phase Contrast (DPC) Microscopy, JEOL News 55 (2020) 24-31.
• * Ishizuka A, Oka M, Seki T, Shibata N and Ishizuka K: Numerical Procedures to determine Potential Distribution from Electronic Field Vectors observed in Differential Phase Contrast (DPC) imaging, M&M 2017.
• * Ishizuka A, Oka M, Seki T, Shibata N and Ishizuka K: Boundary-artifact-free determination of potential distribution from differential phase contrast signals, Microscopy 66, 397 (2017).
• Shibata N, Findlay SD, Kohno Y, Sawada H, Kondo Y & Ikuhara Y: Differential phase-contrast microscopy at atomic resolution, Nature Physics 8, 611 (2012).
• Matsumoto T, So YG, Kohno Y, Sawada H, Ikuhara Y, Shibata N: Direct observation of Sigma7 domain boundary core structure in magnetic skyrmion lattice, Sci. Adv. 2:e1501280 (2016)

Examples (Sample Data)

Download

You have to purchase a license (hardware key) to run this program.
Please send your price enquiry to support@hremresearch.com.

• qDPC v1.3
  for GMS 3.5 (64bit)
  for GMS 3.4 (64bit)
  for GMS 3.3 (64bit) (applicable from GMS 3.0)
  for GMS 2.3 32bit    GMS 2.3 64bit
  for GMS 2.1 32bit    GMS 2.1 64bit (applicable from GMS 2.0)

• STEMx module
  for GMS 3.5 (64bit) v1.3.2
  for GMS 3.4 (64bit) v1.3.1
  for GMS 3.3 (64bit) v1.3 (applicable from GMS 3.0)
  for GMS 2.3 64bit v1.3
  for GMS 2.1 64bit v1.3 (applicable from GMS 2.0)

• 4DCanvas module v1.3
  for GMS 3.5 (64bit)
  for GMS 3.4 (64bit)
  for GMS 3.3 (64bit) (applicable from GMS 3.0)
  for GMS 2.3 64bit
  for GMS 2.1 64bit (applicable from GMS 2.0)

• SD module v1.3
  for GMS 3.5 (64bit)
  for GMS 3.4 (64bit)
  for GMS 3.3 (64bit) (applicable from GMS 3.0)

Required plug-ins.

• IPU plug-in (Free Software)

User Key Driver

• User Key Driver / Remote Update System (RUS)

Previous versions

• STEMx module
  for GMS 3.5 (64bit) v1.3.1
  for GMS 3.4 (64bit) v1.3
  

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