Publication Charges

Latest additions:
2017-06-12
11:40
DBCoverage [PUBDB-2017-04701] Journal Article
; ; ; et al
Er-Fiber laser enabled, energy scalable femtosecond source tunable from 1.3 to 1.7 $\mu$m
Optics express 25(14), 15760 - 15774 (2017) [10.1364/OE.25.015760]  GO
ddc:530
We demonstrate that energetic femtosecond pulses tunable from 1.3 to 1.7 µm can be achieved using self-phase modulation enabled spectral broadening followed by spectral lobe filtering. Based on a home-built 5-W Er-fiber laser system operating at 31-MHz repetition rate, we obtain femtosecond pulses that can be continuously tuned from 1.3 to 1.7 µm with >4.5 nJ pulse energy. [...]

Detailed record - Similar records
2017-05-23
10:15
OpenAccess [PUBDB-2017-03398] Journal Article
; ; ; et al
Split-and-delay Unit for FEL Interferometry in the XUV Spectral Range
ddc:600
In this work we present a reflective split-and-delay unit (SDU) developed for interferometric time-resolved experiments utilizing an (extreme ultraviolet) XUV pump–XUV probe scheme with focused free-electron laser beams. The developed SDU overcomes limitations for phase-resolved measurements inherent to conventional two-element split mirrors by a special design using two reflective lamellar gratings. [...]

Detailed record - Similar records
2017-05-22
14:41
OpenAccess [PUBDB-2017-03368] Journal Article
; ; ; et al
Probing Dynamics in Colloidal crystals with pump-probe experiments at LCLS Methodololgy and analysis
Seminar, Meeting locationHamburg, Germany,
Applied Sciences 7(5), 519 (2017) [10.3390/app7050519]  GO
ddc:600
We present results of the studies of dynamics in colloidal crystals performed by pump-probeexperiments using an X-ray free-electron laser (XFEL). Colloidal crystals were pumped with aninfrared laser at a wavelength of 800 nm with varying power and probed by XFEL pulses at anenergy of 8 keV with a time delay up to 1000 ps. [...]

Detailed record - Similar records
2017-05-19
11:38
OpenAccess [PUBDB-2017-03217] Journal Article
; ; ; et al
Breaking the Femtosecond Barrier in Multi-km Timing Synchronization Systems
ddc:530
To observe electronic dynamics in atoms, molecules, and condensed matter taking place on an attosecond time scale, next-generation photon science facilities like X-ray free-electronlasers and intense laser beamlines require system-wide attosecondlevel synchronization of dozens of optical andmicrowave signals up to kilometer distances. Here, we present for the first time a timing synchronization system that can meet the strict timing requirements of such large-scale facilities. [...]

Detailed record - Similar records
2017-05-17
11:16
[PUBDB-2017-03059] Journal Article
; ; ; et al
Narrowband terahertz generation wich chirped-and-delayed laser pulses in periodically poled lithium niobate
Optics letters 42(11), 2118 - 2121 (2017) [10.1364/OL.42.002118]  GO
ddc:530
We generate narrowband terahertz (THz) radiation in periodically poled lithium niobate (PPLN) crystals using two chirped-and-delayed driver pulses from a high-energy Ti:sapphire laser. The generated frequency is determined by the phase-matching condition in the PPLN and influences the temporal delay of the two pulses for efficient terahertz generation. [...]

Detailed record - Similar records
2017-05-12
11:45
OpenAccess [PUBDB-2017-02744] Journal Article
; ; ; et al
Attosecond Interferometry with Self-Amplified Spontaneous Emission of a free-electron laser
ddc:500
Light-phase-sensitive techniques, such as coherent multidimensional spectroscopy, are well-established in a broad spectral range, already spanning from radio-frequencies in nuclear magnetic resonance spectroscopy to visible and ultraviolet wavelengths in nonlinear optics with table-top lasers. In these cases, the ability to tailor the phases of electromagnetic waves with high precision is essential [...]

Detailed record - Similar records
2017-05-08
13:15
OpenAccess [PUBDB-2017-02387] Journal Article
; ; ; et al
Lepton-Flavor-Dependent Angular Analysis of $B \to K^{*}\ell^{+}\ell^{-}$
ddc:550
We present a measurement of angular observables and a test of lepton flavor universality in the $B→K∗ℓ^{+}ℓ^{−}$ decay, where ℓ is either e or μ. The analysis is performed on a data sample corresponding to an integrated luminosity of 711  fb$^{−1}$ containing 772×10$^6$ $B\bar{B}$ pairs, collected at the $\Upsilon$(4S) resonance with the Belle detector at the asymmetric-energy $e^{+}e^−$ collider KEKB. [...]

Detailed record - Similar records
2017-05-03
22:30
OpenAccess [PUBDB-2017-02205] Journal Article
; ; ; et al
Highly efficient soft X-ray spectrometer based on a reflection zone plate for resonant inelastic X-ray scattering measurements
Optics express 25(10), 10984 - 10996 (2017) [10.1364/OE.25.010984]  GO
ddc:530
We present a newly designed compact and flexible soft X-ray spectrometer for resonant inelastic X-ray scattering (RIXS) studies within an energy range from 380 eV to 410 eV, which would include the K alpha emission lines of vital elements like nitrogen. We utilized an off-axis reflection zone plate (RZP) as the wavelength selective element with a maximum line density of 10000 l/mm [...]

Detailed record - Similar records
2017-04-21
09:21
OpenAccess [PUBDB-2017-01762] Journal Article
; ; ; et al
Multiple Auger cycle photoionisation of manganese atoms by short soft x-ray pulses
ddc:530
The multiple ionisation of atomic Mn, excited at (photon energy: 52.1eV) and above (photon energy: 61.1eV) the discrete giant 3p–3d resonance, was studied using high irradiation free-electron-laser soft x-ray pulses from the BL2 beamline of FLASH, DESY, Hamburg. In particular, the impact of the giant resonance on the ionisation mechanism was investigated. [...]
External links: Download fulltextFulltext; Download fulltextOpenAccess

Detailed record - Similar records
2017-04-19
10:18
[PUBDB-2017-01684] Journal Article
; ; ; et al
Structure Studies of the Bond-Orientational order and the hexatic-smectic transition in liquid crystals of various compositions
Soft matter 13(17), 3240 - 3252 (2017) [10.1039/C7SM00343A]  GO
ddc:530
We report on the X-ray studies of freely suspended hexatic films of three different liquid crystal compounds. By applying angular X-ray cross-correlation analysis (XCCA) to the measured diffraction patterns the parameters of the bond-orientational (BO) order in the hexatic phase were directly determined [...]

Detailed record - Similar records