<div class="csl-bib-body">
<div class="csl-entry">Akram, M., Bashir, S., Jalil, S. A., ElKabbash, M., Aumayr, F., Ajami, A., Husinsky, W., Mahmood, K., Rafique, M. S., & Guo, C. (2019). Femtosecond laser induced periodic surface structures for the enhancement of field emission properties of tungsten. <i>Optical Materials Express</i>, <i>9</i>(7), 3183–3192. https://doi.org/10.1364/ome.9.003183</div>
</div>
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dc.identifier.issn
2159-3930
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/142877
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dc.description.abstract
Direct femtosecond laser ablation enables the maskless fabrication of nano- and
micro-scale structures on variety of materials. A typical example is the formation of femtosecond
Laser Induced Periodic Surface Structures (fs-LIPSSs), which can lead to strong modification
in electrical, optical, wetting, and field emission properties of materials. Here, we study the
field emission properties of fs-LIPSSs. We created fs-LIPSSs and fs-LIPSSs covered with nanoand
micro-scale structures at different laser fluences on Tungsten (W) and showed that these
structures offer significant enhancement in electron field emission properties. We provide a
phenomenological model to explain the enhancement of electron emission parameters. The
enhancement in the field emission properties of laser irradiated W is explained based on the
convergence of electric field lines at the ridges of the fs-LIPSSs and fs-LIPSSs covered with
nanoscale structures, which in turn, enhances the local field intensity and the electron emission
parameters. The direct fabrication of 1D subwavelength structures is an important step towards
the creation of low-cost cathodes for various potential applications.
en
dc.language.iso
en
-
dc.publisher
OPTICA PUBLISHING GROUP
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dc.relation.ispartof
Optical Materials Express
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dc.subject
Electronic, Optical and Magnetic Materials
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dc.title
Femtosecond laser induced periodic surface structures for the enhancement of field emission properties of tungsten
en
dc.type
Artikel
de
dc.type
Article
en
dc.description.startpage
3183
-
dc.description.endpage
3192
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dc.type.category
Original Research Article
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tuw.container.volume
9
-
tuw.container.issue
7
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tuw.journal.peerreviewed
true
-
tuw.peerreviewed
true
-
tuw.researchTopic.id
M2
-
tuw.researchTopic.name
Materials Characterization
-
tuw.researchTopic.value
100
-
dcterms.isPartOf.title
Optical Materials Express
-
tuw.publication.orgunit
E134-03 - Forschungsbereich Atomic and Plasma Physics
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tuw.publisher.doi
10.1364/ome.9.003183
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dc.identifier.eissn
2159-3930
-
dc.description.numberOfPages
10
-
tuw.author.orcid
0000-0003-3795-7714
-
wb.sci
true
-
wb.sciencebranch
Physik, Astronomie
-
wb.sciencebranch.oefos
1030
-
wb.facultyfocus
Physikalische Technologie
de
wb.facultyfocus
Physical Technology
en
wb.facultyfocus.faculty
E130
-
item.fulltext
no Fulltext
-
item.openairecristype
http://purl.org/coar/resource_type/c_2df8fbb1
-
item.languageiso639-1
en
-
item.cerifentitytype
Publications
-
item.openairetype
research article
-
item.grantfulltext
none
-
crisitem.author.dept
E134-03 - Forschungsbereich Atomic and Plasma Physics