11112
2014
eng
article
1
2015-03-17
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Shaping and spatiotemporal characterization of sub-10-fs pulses focused by a high-NA objective
We describe a setup consisting of a 4 f pulse shaper and a microscope with a high-NA objective lens and discuss the spects most relevant for an undistorted spatiotemporal profile of the focused beam. We demonstrate shaper-assisted pulse compression in focus to a sub-10-fs duration using phase-resolved interferometric spectral modulation (PRISM). We introduce a nanostructure-based method for sub-diffraction spatiotemporal characterization of strongly focused pulses. The distortions caused by optical aberrations and space–time coupling from the shaper can be reduced by careful setup design and alignment to about 10 nm in space and 1 fs in time.
10.1364/OE.22.031496
urn:nbn:de:bvb:20-opus-111120
Optics Express 22, 25 (2014), 31496 - 31510, doi 10.1364/OE.22.031496
Röntgen Center for Complex Material Systems (RCCM), Am Hubland, 97074 W¨urzburg, Germany
Deutsches Urheberrecht
Tobias Brixner
Monika Pawłowska
Sebastian Goetz
Christian Dreher
Matthias Wurdack
Enno Krauss
Gary Razinskas
Peter Geisler
Bert Hecht
eng
uncontrolled
Interference microscopy
eng
uncontrolled
Scanning microscopy
eng
uncontrolled
Subwavelength structures
eng
uncontrolled
nanostructures
eng
uncontrolled
Pulse shaping
eng
uncontrolled
Ultrafast measurements
Physikalische Chemie
open_access
Physikalisches Institut
Institut für Physikalische und Theoretische Chemie
Förderzeitraum 2014
Universität Würzburg
https://opus.bibliothek.uni-wuerzburg.de/files/11112/167_Brixner_Optics.pdf
7203
2012
eng
article
1
2013-02-04
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Spectral-interference microscopy for characterization of functional plasmonic elements
Plasmonic modes supported by noble-metal nanostructures offer strong subwavelength electric-field confinement and promise the realization of nanometer-scale integrated optical circuits with well-defined functionality. In order to measure the spectral and spatial response functions of such plasmonic elements, we combine a confocal microscope setup with spectral interferometry detection. The setup, data acquisition, and data evaluation are discussed in detail by means of exemplary experiments involving propagating plasmons transmitted through silver nanowires. By considering and experimentally calibrating any setup-inherent signal delay with an accuracy of 1 fs, we are able to extract correct timing information of propagating plasmons. The method can be applied, e.g., to determine the dispersion and group velocity of propagating plasmons in nanostructures, and can be extended towards the investigation of nonlinear phenomena.
Optics Express
7567
http://www.opticsinfobase.org/oe/fulltext.cfm?uri=oe-20-13-14632&id=238393
urn:nbn:de:bvb:20-opus-85922
In: Optics Express (2012) 20: 13, 14632-14647, doi:10.1364/OE.20.014632
Deutsches Urheberrecht
Christian Rewitz
Thomas Keitzl
Philip Tuchscherer
Sebastian Goetz
Peter Geisler
Gary Razinskas
Bert Hecht
Tobias Brixner
Chemie und zugeordnete Wissenschaften
open_access
Institut für Physikalische und Theoretische Chemie
Förderzeitraum 2012
Universität Würzburg
https://opus.bibliothek.uni-wuerzburg.de/files/7203/Brixner_oe-20-13-14632.pdf