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dc.contributor.author
Lehmann, Jannis
dc.contributor.author
Tzschaschel, Christian
dc.contributor.author
Fiebig, Manfred
dc.contributor.author
Weber, Thomas
dc.date.accessioned
2020-10-22T08:01:41Z
dc.date.available
2019-09-27T13:02:16Z
dc.date.available
2020-10-22T08:01:41Z
dc.date.issued
2019-04
dc.identifier.issn
0021-8898
dc.identifier.issn
1600-5767
dc.identifier.other
10.1107/S1600576719001948
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/367004
dc.description.abstract
Presented here is a flexible and low-cost setup for demonstrating X-ray, electron or neutron diffraction methods in the classroom. Using programmable spatial light modulators extracted from a commercial video projector, physical diffraction patterns are generated, in real time, of any two-dimensional structure which can be displayed on a computer screen. This concept enables hands-on experience beyond simplest-case scenarios of scattering phenomena, and for the students, the transfer to the regime of visible light greatly enhances intuitive understanding of diffraction in real and reciprocal space. The idea and working principle of the modified video projector are explained, technical advice is given for its choice and successful modification, and a Python-based open-source program code is provided. Program features include the design and interactive manipulation of two-dimensional crystal structures to allow a straightforward demonstration of concepts such as reciprocal space, structure factors, selection rules, symmetry and symmetry violation, as well as structural disorder. This approach has already proved helpful in teaching crystal diffraction to undergraduate students in materials science.
en_US
dc.language.iso
en
en_US
dc.publisher
Wiley
en_US
dc.subject
Video projectors
en_US
dc.subject
Microdisplays
en_US
dc.subject
Lasers
en_US
dc.subject
Optical diffraction
en_US
dc.subject
Reciprocal-space simulation
en_US
dc.subject
Teaching
en_US
dc.subject
DIY
en_US
dc.title
Microdisplays as a versatile tool for the optical simulation of crystal diffraction in the classroom
en_US
dc.type
Journal Article
dc.date.published
2019-03-26
ethz.journal.title
Journal of Applied Crystallography
ethz.journal.volume
52
en_US
ethz.journal.issue
Part 2
en_US
ethz.journal.abbreviated
J. appl. crystallogr.
ethz.pages.start
457
en_US
ethz.pages.end
462
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Oxford
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02160 - Dep. Materialwissenschaft / Dep. of Materials::03918 - Fiebig, Manfred / Fiebig, Manfred
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02160 - Dep. Materialwissenschaft / Dep. of Materials::03918 - Fiebig, Manfred / Fiebig, Manfred
en_US
ethz.date.deposited
2019-04-16T03:19:49Z
ethz.source
WOS
ethz.source
FORM
ethz.eth
yes
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2019-09-27T13:02:27Z
ethz.rosetta.lastUpdated
2019-09-27T13:02:27Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/338175
dc.identifier.olduri
http://hdl.handle.net/20.500.11850/366689
ethz.COinS
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