Microfabricated high-bandpass foucault aperture for electron microscopy
Abstract
A variant of the Foucault (knife-edge) aperture is disclosed that is designed to provide single-sideband (SSB) contrast at low spatial frequencies but retain conventional double-sideband (DSB) contrast at high spatial frequencies in transmission electron microscopy. The aperture includes a plate with an inner open area, a support extending from the plate at an edge of the open area, a half-circle feature mounted on the support and located at the center of the aperture open area. The radius of the half-circle portion of reciprocal space that is blocked by the aperture can be varied to suit the needs of electron microscopy investigation. The aperture is fabricated from conductive material which is preferably non-oxidizing, such as gold, for example.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1150829
- Patent Number(s):
- 8816297
- Application Number:
- 13/708,521
- Assignee:
- The Regents of the University of California (Oakland, CA)
- Patent Classifications (CPCs):
-
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- DOE Contract Number:
- A02-05CH11231
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Glaeser, Robert, Cambie, Rossana, and Jin, Jian. Microfabricated high-bandpass foucault aperture for electron microscopy. United States: N. p., 2014.
Web.
Glaeser, Robert, Cambie, Rossana, & Jin, Jian. Microfabricated high-bandpass foucault aperture for electron microscopy. United States.
Glaeser, Robert, Cambie, Rossana, and Jin, Jian. Tue .
"Microfabricated high-bandpass foucault aperture for electron microscopy". United States. https://www.osti.gov/servlets/purl/1150829.
@article{osti_1150829,
title = {Microfabricated high-bandpass foucault aperture for electron microscopy},
author = {Glaeser, Robert and Cambie, Rossana and Jin, Jian},
abstractNote = {A variant of the Foucault (knife-edge) aperture is disclosed that is designed to provide single-sideband (SSB) contrast at low spatial frequencies but retain conventional double-sideband (DSB) contrast at high spatial frequencies in transmission electron microscopy. The aperture includes a plate with an inner open area, a support extending from the plate at an edge of the open area, a half-circle feature mounted on the support and located at the center of the aperture open area. The radius of the half-circle portion of reciprocal space that is blocked by the aperture can be varied to suit the needs of electron microscopy investigation. The aperture is fabricated from conductive material which is preferably non-oxidizing, such as gold, for example.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2014},
month = {8}
}
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