FS-CFEL-2

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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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2017-11-13
18:06
OpenAccess [PUBDB-2017-11919] Journal Article
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Micro-Focusing of Broadband High-Order Harmonic Radiation by a Double Toroidal Mirror
ddc:600
We present an optical system based on two toroidal mirrors in a Wolter configuration to focus broadband extreme ultraviolet (XUV) radiation. Optimization of the focusing optics alignment is carried out with the aid of an XUV wavefront sensor [...]
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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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2017-10-18
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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2017-10-09
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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2017-10-04
15:27
[PUBDB-2017-11134] Journal Article

Off-surface optic axis birefringent filters for smooth tuning of broadband lasers
Applied optics 56(28), 7815 - 7825 (2017) [10.1364/AO.56.007815]  GO
ddc:530
Transition metal-doped gain media, such as Ce:LiCAF, Ti:sapphire, Cr:ZnSe, and Fe:ZnSe, possess wide gain bandwidths that could provide ultra broadly tunable laser output with the usage of adequate intracavity tuning elements. Birefringent filters (BRFs) are a low-cost and easy to use solution for tuning. [...]
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2017-10-02
14:28
OpenAccess [PUBDB-2017-11098] Journal Article
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Ellipticity dependence of high-harmonic generation in solids originating from coupled intraband and interband dynamics
ddc:500
The strong ellipticity dependence of high-harmonic generation (HHG) in gases enables numerous experimental techniques that are nowadays routinely used, for instance, to create isolated attosecond pulses. Extending such techniques to solids requires a fundamental understanding of the microscopic mechanism of HHG. [...]
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