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An all-fiber Raman laser for cylindrical vector beam generation
We demonstrate a compact Raman all-fiber oscillator for cylindrical vector beam generation. The laser is based on a strongly guiding passive fiber with two fiber Bragg gratings inscribed in it, which separates...
PublicationsRaman investigations of Upper Cretaceous phosphorite and black shale from Safaga District, Red Sea, Egypt
The mineral composition of the Upper Cretaceous Duwi phosphorite deposits and underlying Quseir Variegated Shale from Safaga district, Red Sea Range, Egypt, was investigated by dispersive and Fourier transformed...
PublicationsMagneto-optical analysis of stripe elements embedded in a synthetic antiferromagnet
Domain structures and the magnetic reversals of micron stripe patterns embedded in a weakly antiferromagnetically exchange coupled Co90Fe10/Ru/Co90Fe10 trilayer were investigated. Patterning was achieved...
PublicationsUncooled thermocouple air-bridge structure for a THz imaging system
We have developed an air-bridge structure supporting a thermocouple-based conducting strip, which acts as both a terminating resistance of an antenna and temperature sensor. The fabrication of the 30 µm...
PublicationsMeasuring conditions for second order X-ray Bragg-spectrometry
The KL2,3 (alpha)12-lines of 19K, the L3M4,5 (alpha)12-lines of 48Cd, and the M5N6,7 (alpha)12-lines of 92U are lines of comparable energy in the region of approximately 3 keV. In none of these cases were...
PublicationsResonance modes in coplanar lines with integrated Josephson circuits
The propagation of microwave radiation in co-planar superconducting lines with Josephson circuits (microresonators) of various configurations is investigated. It is shown that dips in the frequency dependence...
PublicationsEffect of Cherenkov radiation on the jitter of solitons in the driven underdamped Frenkel-Kontorova model
The effect of complex dynamics of solitons on the output noise of the system (thermal jitter) is studied in the frame of the driven underdamped Frenkel-Kontorova model. In contrast to the continuous case,...
PublicationsPhase diagram of the resistive state of a narrow superconducting channel in the voltage-driven regime
Based on the numerical solution of the non-stationary (time-dependent) Ginzburg–Landau equations, we investigated the evolution of the order parameter of superconducting channels of different length...
PublicationsThermoelectric radiation sensors for the space mission BepiColombo to Mercury
We present a newly designed thermoelectric detector chip of high detectivity for the space mission BepiColombo to Mercury. The sensor is part of the MERTIS radiometer, which enables radiometric measurements...
PublicationsNon-invasive depth profile imaging of the stratum corneum using confocal Raman microscopy: First insights into the method
The stratum corneum is a strong barrier that must be overcome to achieve successful transdermal delivery of a pharmaceutical agent. Many strategies have been developed to enhance the permeation through...
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