CFEL-UFOX

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2019-01-28
15:22
OpenAccess [PUBDB-2019-00823] Journal Article
et al
Reconstructing nonlinear plasma wakefields using a generalized temporally encoded spectral shifting analysis
We generalize the temporally encoded spectral shifting (TESS) analysis for measuring plasma wakefields using spectral interferometry to dissimilar probe pulses of arbitrary spectral profile and to measuring nonlinear wakefields. We demonstrate that the Gaussian approximation used up until now results in a substantial miscalculation of the wakefield amplitude, by a factor of up to two [...]
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ddc:530
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2018-12-21
07:57
OpenAccess [PUBDB-2018-05840] Conference Presentation
et al
Polarization states of high-harmonics generated in silicon from elliptical drivers
Ultrafast Phenomena, UP 2018, HamburgHamburg, Germany, 15 Jul 2018 - 20 Jul 20182018-07-152018-07-20  GO
The polarization states of high-harmonics generated in silicon with elliptical excitation is studied. Circularly polarized harmonics are demonstrated with both circular and non-circularexcitation, determined by crystal symmetry and dynamical response of the system..
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2018-12-14
17:13
OpenAccess [PUBDB-2018-05531] Conference Presentation
et al
Half-cycle mJ-level CEP-stable Pulses fromParametricWaveform Synthesis
CLEO Pacific Rim, CLEO-PR, Hong KongHong Kong, China, 29 Jul 2018 - 3 Aug 20182018-07-292018-08-03  GO
Nearly transform-limited, carrier-envelope phase stable, 3.4 fs pulses with centralwavelength of 1.8 mm are generated via parametric waveform synthesis. The mJ-level energy,at 1 kHz repetition rate, allows for waveform-controlled bright high-harmonic generation..
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2018-12-14
17:10
OpenAccess [PUBDB-2018-05530] Conference Presentation
et al
Controlled HHG with a Sub-Cycle mJ-Level Parametric Waveform Synthesizer
CLEO Pacific Rim, CLEO-PR, Hong KongHong Kong, China, 29 Jul 2018 - 3 Aug 20182018-07-292018-08-03  GO
We present high-harmonic generation (HHG) driven with a sub-cycle mJ-levelparametric waveform synthesizer. The HHG yield and spectral shape can be controlled byvarying the carrier-envelope phase and the relative phase in the synthesizer channels..
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2018-12-14
17:05
OpenAccess [PUBDB-2018-05529] Conference Presentation
et al
Two-color-field Driven Hollow-core Fiber Compressor with Robust Inline Scheme
CLEO Pacific Rim, CLEO-PR, Hong KongHong Kong, China, 29 Jul 2018 - 3 Aug 20182018-07-292018-08-03  GO
We present a new scheme of two-color-field driven hollow-core-fiber compression,whose ~1mJ output covers 300 nm to 950 nm supporting sub-cycle pulses of ~2.1 fs duration.The spectral phase is characterized with two-dimensional spectral shearing interferometry..
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2018-12-14
17:01
OpenAccess [PUBDB-2018-05528] Conference Presentation
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Excitation and control of spin waves in FeBO3 by a strong-field THz pulse
Ultrafast Phenomena, UP 2018, HamburgHamburg, Germany, 15 Jul 2018 - 20 Jul 20182018-07-152018-07-20  GO
The dynamically resolved response of the canted-antiferromagnet FeBO3 excited near amagnon resonance shows fast oscillations after THz-excitation, followed by the magnons’ intrinsicrelaxation, enabling to probe transient magnetic relaxation dynamics over large frequency range..
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2018-12-14
16:56
OpenAccess [PUBDB-2018-05527] Poster
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Millijoule-Level Sub-Cycle Pulses from Two Channelsof a Parallel Parametric Waveform Synthesizer
Ultrafast Phenomena, UP2018, HamburgHamburg, Germany, 15 Jul 2018 - 20 Jul 20182018-07-152018-07-20  GO
We report on an optical synthesis of two compressed channels from our parametric waveformsynthesizer, leading to a 0:6 mJ 4:4 fs pulse (3:6 fs transform limited) with a central wavelengthof 1:8 mm, corresponding to 0:74-cycles..
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2018-12-05
08:07
OpenAccess [PUBDB-2018-05208] Journal Article

Ultra-precise timing and synchronization for large-scale scientific instruments
Optica 5(12), 1564 - 1578 () [10.1364/OPTICA.5.001564]  GO
Ultra-precise timing has become a prerequisite for many modern large-scale scientific instruments, and timing precision is a crucial enabling factor to achieve the ultimate goals of those instruments. Here, we review the recent progress in timing technologies, including timing characterization methods among different kinds of sources (optical lasers, microwaves and x-ray pulses), large-scale free-space timing synchronization, and fiber-based timing synchronization. [...]
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ddc:620
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2018-11-22
14:48
OpenAccess [PUBDB-2018-04700] Contribution to a conference proceedings/Contribution to a book
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Towards Millijoule Narrowband Terahertz Pulses Using the Chirp-and-Delay Technique
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_QELS.2018.FF1E.3
CLEO: QELS_Fundamental Science, CLEO, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18
Piscataway, NJ : OSA 2 pp. () [10.1364/CLEO_QELS.2018.FF1E.3]  GO
We show generation of THz pulses of combined energy above 0.5 mJ at 0.361 THz using the chirp-and-delay technique..
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2018-11-22
14:38
[PUBDB-2018-04698] Poster
et al
A time-preserving ultra-narrow-bandwidth multilayer-mirror monochromator for extreme ultraviolet pulses
CLEO: Applications and Technology, CLEO, San Jose, CaliforniaSan Jose, California, USA, 13 May 2018 - 18 May 20182018-05-132018-05-18  GO
We present a multilayer-mirror-based monochromator providing ultra-narrow bandwidth and compact footprint for easy integration into HHG-based or FEL sources. The bandwidth (ΔE<0.5eV, E c =∼91eV) of the monochromator is characterized experimentally in a HHG-based source..
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