CFEL-UFOX

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2017-11-30
14:49
OpenAccess [PUBDB-2017-12618] Master Thesis
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Enhanced soft-X-ray high-harmonic generation driven by mid-IR pulses mixed with their third harmonic
120 pp. (2017) [10.3204/PUBDB-2017-12618] = Masterarbeit, Universität Hamburg, 2017  GO
This work is a systematic study of the enhancement of soft-X-ray high-harmonic generation (HHG) driven by two-color (ω + 3ω) waveforms in argon at different pressures. The observed enhancement due to the two-color driver reaches factors over one order of magnitude when compared to single-color driven HHG. [...]
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2017-11-23
10:07
OpenAccess [PUBDB-2017-12241] Conference Presentation
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Shot-to-Shot and Long-Term CEP-Stable Front-End for a Parallel Optical Waveform Synthesizer
Conference on Lasers and Electro-Optics Pacific Rim, CLEO-PR, Meeting locationSingapore, Singapore, 31 Jul 2017 - 4 Aug 20172017-07-312017-08-04  GO
We present a highly automated front-end of a Ti:Sa-based optical waveform synthesizer capable of driving multiple supercontinua with stable and controlled carrier-envelope phases. The remarkable CEP-stability of 217 mrad rms singleshot will allow shot-to-shot and long-term stable waveform synthesis..
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2017-11-08
10:24
OpenAccess [PUBDB-2017-11743] Conference Presentation
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Optimized octave-spanning Ti:Sapphire laser oscillator characterized by novel two-dimensional shearing interferometry
2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference , CLEO/Europe-EQEC, Meeting locationMunich, Germany, 25 Jun 2017 - 29 Jun 20172017-06-252017-06-29  GO
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2017-10-27
12:18
[PUBDB-2017-11586] Contribution to a conference proceedings/Contribution to a book
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A Dielectric Loaded Higher Order Mode THz Electron Injector
2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) : [Proceedings] - IEEE, 2017. - ISBN 978-1-5090-6050-4 - doi:10.1109/IRMMW-THz.2017.8067058
42nd International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), IRMMW-THz, Meeting locationCancun, Mexico, 27 Aug 2017 - 1 Sep 20172017-08-272017-09-01
IEEE, 1-2 (2017) [10.1109/IRMMW-THz.2017.8067058]  GO
A dielectric loaded cavity operating in TM012 mode is designed to be used as electron injector into a THz accelerator. The designed cavity works at 360 GHz and uses about 3 mJ ofThz energy. [...]
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2017-10-24
16:18
arXiv [PUBDB-2017-11539] Preprint/Report
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Development and Characterization of a Laser-Induced Acoustic Desorption Source
[arXiv:1710.06684]
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A laser-induced acoustic desorption source, developed for use at central facilities, such as free-electron lasers, is presented. It features prolonged measurement times and a fixed interaction point. [...]
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2017-10-18
13:21
[PUBDB-2017-11443] Dissertation / PhD Thesis
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All-Optical Electron Acceleration with Ultrafast THz Pulses
210 pp. (2017) = Massachusetts Institute of Technology, Diss., 2017
This thesis discusses a series of advances toward - and resulting in -the demonstration of the first ultrafast THz-driven electron gun, a technology with the potential to deliver unprecedented electron beam quality to scientists studying matter at the ultrafast and ultrasmall scale via electron diffraction or x-ray imaging. In Part 1, we discuss various advances in generation of high energy pulsed THz radiation, a spectral regime uniquely effective at accelerating electrons but historically lacking in effcient sources. [...]
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2017-10-10
16:07
[PUBDB-2017-11258] Conference Presentation
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Laser-induced acoustic desorption of large molecules via tape-drive method
DPG-Frühjahrstagung SAMOP, Meeting locationHannover, Germany, 29 Feb 2016 - 4 Mar 20162016-02-292016-03-04
By dispersing molecular beams with strong electric fields, we can routinely produce pure samples of individual conformers or clusters according to their quantum state. Selected molecules can be further controlled using alignment and orientation by laser and static electric fields [1]. [...]
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2017-10-10
15:45
[PUBDB-2017-11257] Conference Presentation (After Call)
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Laser-induced acoustic desorption of large molecules for FEL experiments
DPG-Frühjahrstagung SAMOP, Meeting locationMainz, Germany, 6 Mar 2017 - 10 Mar 20172017-03-062017-03-10
Laser-induced acoustic desorption (LIAD) is a promising technique for gentle and efficient preparation of large intact neutral molecules into the gas-phase [1]. Here we demonstrate our newly set-up LIAD source, designed for prolonged measurement time, as required by FEL experiments, through automatic sample replenishment. [...]
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2017-10-09
14:16
OpenAccess [PUBDB-2017-11222] Book/Report/Dissertation / PhD Thesis
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High energy multi-cycle terahertz generation
[DESY-THESIS-2017-039]
Hamburg : Verlag Deutsches Elektronen-Synchrotron, DESY-THESIS, 198 pp. (2017) [10.3204/PUBDB-2017-11222] = Universität Hamburg, Diss., 2017  GO
Development of compact electron accelerators and free-electron lasers requires novel acceleration schemes at shorter driving wavelengths. The Axsis project seeks to developterahertz based electron acceleration as well as the high energy terahertz sources required. [...]
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2017-10-05
14:49
[PUBDB-2017-11179] Journal Article
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Mapping Photoemission and Hot-Electron Emission from Plasmonic Nanoantennas
Nano letters 17(10), 6069–6076 (2017) [10.1021/acs.nanolett.7b02495]  GO
ddc:540
Understanding plasmon-mediated electron emission and energy transfer on the nanometer length scale is critical to controlling light−matter interactions at nanoscale dimensions. In a high-resolution lithographic material, electron emission and energy transfer lead to chemical transformations. [...]
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