FS-LA

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2019-06-06
14:05
[PUBDB-2019-02427] Contribution to a conference proceedings/Contribution to a book
et al
Long-Term Stabilization of Temporal and Spectral Drifts of a Burst-Mode OPCPA System
Proceedings Conference on Lasers and Electro-Optics
CLEO: Science and Innovations, CLEO 2019, San JoseSan Jose, California, 5 May 2019 - 10 May 20192019-05-052019-05-10
Washington, DC : OSA STu4E.4 ()
We demonstrate a stabilization system for temporal and spectral drifts of an OPCPA pump-probe laser at the FLASH soft-x-ray FEL-facility. We achieve drifts of 5.7fs rms and 3.2nm rms, respectively over two days [...]
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2019-06-06
14:01
[PUBDB-2019-02426] Contribution to a conference proceedings/Contribution to a book

Flexible Pulse-Shape Picosecond Front-End for XFEL Photocathode Lasers
Proceedings Conference on Lasers and Electro-Optics
CLEO: Science and Innovations, CLEO 2019, San JoseSan Jose, California, 5 May 2019 - 10 May 20192019-05-052019-05-10
Washington, DC : OSA SF3I.4 () [10.1364/CLEO_SI.2019.SF3I.4]  GO
X-ray Free-Electron Lasers rely on low-emittance photo-injectors driven by UV laser pulses. For optimum performance temporally shaped laser pulses are desired. [...]
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2019-05-14
18:25
Embargoed OpenAccess [PUBDB-2019-02278] Journal Article
et al
Long-term stable supercontinuum generation and watt-level transmission in liquid-core optical fibers
Optics letters 44(9), 2236 -2239 () [10.1364/OL.44.002236]  GO
Due to their unique properties such as transparency, tunability, nonlinearity, and dispersion flexibility, liquid-core fibers represent an important approach for future coherent mid-infrared light sources. However, the damage thresholds of these fibers are largely unexplored. [...]
Published on 2019-04-24. Available in OpenAccess from 2020-04-24.: Download fulltextPDF Download fulltextPDF (PDFA); Restricted: Download fulltextPDF Download fulltextPDF (PDFA); External link: Download fulltextFulltext
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2019-04-25
14:46
OpenAccess [PUBDB-2019-02076] Journal Article
et al
Spaping femtosecond laser pulses at short wavelength with grazing-incidence optics
Optics express 27(9), 13479 - 13491 () [10.1364/OE.27.013479]  GO
We present the design of an extreme ultraviolet (XUV) pulse shaper relying on reflective optics. The instrument will allow tailoring of the time-frequency spectrum of femtosecond pulses generated by seeded free-electron lasers (FEL) and high-harmonic generation (HHG) sources down to a central wavelength of ~15 nm [...]
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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. [...]
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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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