FS-LA

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2019-03-06
11:56
OpenAccess [PUBDB-2019-01355] Contribution to a conference proceedings/Contribution to a book
et al
Electron Beam Heating with the European XFEL Laser Heater
[Ebook] FEL 2017 : 38th International Free Electron Laser Conference : 20th-25th August, 2017, Santa Fe Convention Center, Santa Fe, NM, USA / editors: Kip Bishofberger (LANL), Bruce Carlsten (LANL), Volker RW Schaa (GSI , [Genf] : [CERN], [2018],
38th International Free Electron Laser Conference, FEL2017, Santa Fe, NMSanta Fe, NM, USA, 20 Aug 2017 - 25 Aug 20172017-08-202017-08-25
Genf : JACoW 450-451 () [10.18429/JACoW-FEL2017-WEP018]  GO
The commissioning of the European XFEL is ongoing. To reduce unwanted longitudinal micro-bunching effects, a laser heater is implemented. [...]
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2019-01-28
16:01
OpenAccess [PUBDB-2019-00828] Journal Article
et al
Thermodynamic control of soliton dynamics in liquid-core fibers
Optica 5(6), 695 - 703 () [10.1364/OPTICA.5.000695]  GO
Liquid-core fibers offer local external control over pulse dispersion due to their strong thermodynamic response, offering a new degree of freedom in accurate soliton steering for reconfigurable nonlinear light generation. Here, we show how to accurately control soliton dynamics and supercontinuum generation in carbon disulfide/silica fibers by temperature and pressure tuning, monitored via the spectral location and the onset energy of non-solitonic radiation [...]
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ddc:620
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2018-12-28
09:29
OpenAccess [PUBDB-2018-05910] Contribution to a conference proceedings
et al
Status of the sFLASH Experiment
9th International Particle Accelerator Conference, IPAC'18, VancouverVancouver, Canada, 29 Apr 2018 - 4 May 20182018-04-292018-05-04 JACoW Publishing, Geneva, Switzerland 1471--1473 () [10.18429/JACOW-IPAC2018-TUPMF085]  GO
The sFLASH experiment at the free-electron laser (FEL) FLASH1 is a setup for the investigation of external FEL seeding. Since 2015, the seeding scheme high-gain harmonic generation (HGHG) is being studied. [...]
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2018-12-01
20:24
Embargoed OpenAccess [PUBDB-2018-05141] Journal Article
et al
Coulomb explosion imaging of $CH_{3}I$ and $C_{2}ClI$ photodissociation dynamics
The photodissociation dynamics of CH$_3$I and CH$_2$ClI at 272 nm were investigated by time-resolved Coulomb explosion imaging, with an intense non-resonant 815 nm probe pulse. Fragment ion momenta over a wide m/z range were recorded simultaneously by coupling a velocity map imaging spectrometer with a pixel imaging mass spectrometry camera. [...]
Published on 2018-11-30. Available in OpenAccess from 2019-11-30.: Download fulltextPDF Download fulltextPDF (PDFA);
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2018-11-24
16:25
OpenAccess [PUBDB-2018-04735] Contribution to a conference proceedings/Contribution to a book
et al
Application of Cavity-Enhanced Comb-Based FourierTransformSpectroscopy to Line Shape Study of CarbonMonoxide in Argon
Conference on Lasers and Electro-Optics : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-42-2 - doi:10.1364/CLEO_SI.2018.STu3P.5
CLEO: Science and Innovations, CLEO, San JoseSan Jose, California, 13 May 2018 - 18 May 20182018-05-132018-05-18
Piscataway, NJ : OSA 2 pp. () [10.1364/CLEO_SI.2018.STu3P.5]  GO
We performed measurements of overtone band of CO using cavity-enhanced Fourier-transform spectrometer with sub-nominal resolution. The system’s performance allows to study collisional effects not described by the Voigt profile and precise determination of line parameters..
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2018-11-24
16:20
[PUBDB-2018-04734] Contribution to a conference proceedings/Contribution to a book
et al
Line Shape Measurements of CO Using Frequency Comb Based Cavity-Enhanced Absorption Spectroscopy
Advanced Photonics 2018 (BGPP, IPR, NP, NOMA, Sensors, Networks, SPPCom, SOF) : [Proceedings] - OSA Washington, D.C., 2018. - ISBN 978-1-943580-43-9 - doi:10.1364/SENSORS.2018.SeTu3H.3
Optical Sensors, ZurichZurich, Switzerland, 2 Jul 2018 - 5 Jul 20182018-07-022018-07-05
Washington, D.C., USA : OSA, OSA technical digest (online) SeTu3H.3 () [10.1364/SENSORS.2018.SeTu3H.3]  GO
We performed measurements of overtone band of CO using a frequency comb based cavity-enhanced absorption spectroscopy and Fourier-transform spectrometer with sub-nominal resolution. The technique allows to measure and determine precisely line-shape parameters in wide range..

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2018-11-24
16:15
OpenAccess [PUBDB-2018-04733] Contribution to a conference proceedings/Contribution to a book
et al
OPC UA to DOOCS Bridge: A Tool for Automated Integration of Industrial Devices Into the Accelerator Control Systems at FLASH and European XFEL
[Ebook] ICALEPCS2017 : 16th International Conference on Accelerator and Large Experimental Control Systems : Barcelona, Spain, October 8-13, Palau de Congressos de Catalunya / Fernández, David ; Costa, Isidre , [Genf] : [CERN], [2017],
16th International Conference on Accelerator and Large Experimental Physics Control Systems (ICALEPCS 2017), ICALEPS 2017, BarcelonaBarcelona, Spain, 8 Oct 2017 - 13 Oct 20172017-10-082017-10-13
Geneva, Switzerland : JACoW 344-347 () [10.18429/JACoW-ICALEPCS2017-TUMPA05]  GO
Integrating off-the-shelf industrial devices into an accelerator control system often requires resource-consuming and error-prone software development to implement device-specific communication protocols. With recent progress in standards for industrial controls, more and more devices leverage the OPC UA machine-to-machine communication protocol to publish their functionality via an embedded information model. [...]
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2018-11-24
16:02
OpenAccess [PUBDB-2018-04732] Journal Article
et al
Elements of a dielectric laser accelerator
Optica 5(6), 687 - 690 () [10.1364/OPTICA.5.000687]  GO
We experimentally demonstrate several physical concepts necessary for the future development of dielectric laser accelerators—photonic elements that utilize the inelastic interaction between electrons and the optical near fields of laser-illuminated periodic nanostructures. To build a fully photonic accelerator, concatenation of elements, large energy gains, and beam steering elements are required. [...]
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2018-11-24
15:55
OpenAccess [PUBDB-2018-04731] Journal Article
et al
A spatio-spectral polarization analysis of 1 $\mu m$-pumped bulk supercontinuum in a cubic crystal (YAG)
We present the first systematic study of the spatio-spectral polarization properties of a supercontinuum generated in a cubic crystal, yttrium–aluminum garnet (YAG), including a full spectral analysis of the white light core and surrounding ring structure. We observe no depolarization of the supercontinuum, and no spatial dependence of polarization ratios for any wavelength. [...]
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2018-11-24
15:50
Embargoed OpenAccess [PUBDB-2018-04730] Journal Article
et al
Coherent frequency division with a degenerate synchronously pumped optical parametric oscillator
Optics letters 43(5), 1059 - 1062 () [10.1364/OL.43.001059]  GO
Synchronously pumped optical parametric oscillators (OPOs) are important tools for frequency comb (FC) generation in the mid-IR spectral range, where few suitable laser gain materials exist. For degenerate OPOs, self-phase-locking to the pump FC has been demonstrated. [...]
Published on 2018-02-26. Available in OpenAccess from 2019-02-26.: Download fulltextPDF Download fulltextPDF (PDFA); Restricted: Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext
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