The 87th AMCP Open Seminar
Schedules 2016.11.14 Finished
Date & Time
Venue
Sengen Main Bldg. 8F Middle Seminar Room → access
Registration
For inquiries, please contact the Administrative Office.
This lecture is open to the public. Your participation is strongly encouraged.
Speaker
2. Prof. Marek Malac (National Institute for Nanotechnology, Edmonton, Canada)
Title
2. Hole free phase plate imaging in a TEM
Abstract
2. Zernike-like phase plate contrast can be obtained in a transmission electron microscope by introducing a phase shift between direct and diffracted beams in the back focal plane of objective lens. A particularly convenient implemenation utilizes a uniform thin film with its contrast transfer properties determined by local modifications of the film by the primary electron beam. The need for accurate positioning of the device in back focal plane is eliminated because the phase shifting patch size and position is determined by the primary beam size and position. Such hole free phase plate can increase image contrast by a factor of two to four. While hole free phase plate contrast can not be quantitatively interpreted at present, it can be used to image for example magnetic field inside sample and fringing field in vacuum near sample. It can be also applied to imaging of biological materials. The origin of the hole free phase plate phase shift is not fully understood. In this prentation, example applications and recent development of the contrast origin will be discussed.
Related File / Link
Summary
- Event Title
- The 87th AMCP Open Seminar
- Venue
- National Institute for Materials Science
Sengen Main Bldg. 8F Middle Seminar Room - Schedules Hours
-
2016.11.14
13:30-14:50 - Registration Fee
- Free
Contact
-
Research Center for Advanced Measurement and Characterization Administrative Office
National Institute for Materials Science
1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan
Tel:81-29-859-3861
Fax:81-29-859-2801
E-Mail: amc=ml.nims.go.jp(Please change "=" to "@")
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