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Field-stable SQUID magnetometer with sub-fT/Hz1/2 resolution based on sub-micrometer cross-type Josephson tunnel junctions

We report on the development of a new family of magnetic field sensors with exceptionally low magnetic field noise as low as 0.3 fT/Hz1/2. Beside this, they exhibit high usable voltage swings of more than...

Design of all-normal dispersion microstructured optical fibers for pulse-preserving supercontinuum generation

Recently, the generation of coherent, octave-spanning, and recompressible upercontinuum (SC) light has been demonstrated in optical fibers with all-normal group velocity dispersion (GVD) behavior by femtosecond...

Responsivity and detectivity modelling of thermal radiation sensors based on a biased thermocouple

Thermal radiation sensors are based on two signal transduction stages: radiation to thermal and thermal to electrical. The most common of these sensors are the radiation thermocouple using the Seebeck...

Permanent bending and alignment of ZnO nanowires

Ion beams can be used to permanently bend and re-align nanowires after growth. We have irradiated ZnO nanowires with energetic ions, achieving bending and alignment in different directions. Not only the...

Towards high-sensitivity and high-resolution submillimeter-wave video imaging

Against a background of newly emerged security threats the well-established idea of utilizing submillimeter-wave radiation for personal security screening applications has recently evolved into a promising...

Investigation of intermodal interference of LP01 and LP11 modes in the liquid-core optical fiber for temperature measurements

The intermodal interference of the LP01 and LP11 modes and determination of the equalization wavelength in the liquid-core optical fiber is presented. Theoretically was described the weakly guiding optical...

Femtosecond Coherence Spectroscopic Study of the Onset of Chemical Denaturation of Myoglobin upon Addition of Minor Amounts of Urea

The interaction of urea with myoglobin, as a benchmark system for heme-containing proteins, is studied via femtosecond coherence spectroscopy. The work focuses on the effect of urea on the appearance of...

Temperature influence on the photodarkening kinetics in Yb-doped silica fibers

We report on the characterization of photodarkening (PD) kinetics of Yb-doped fiber samples in a wide temperature range from 77 to 773K and with respect to different Yb2O3 concentrations from 0.09 up to...

Optical refractometer based on large-core air-clad photonic crystal fibers

A large-core air-clad photonic crystal fiber-based sensing structure is described, which is sensitive to refractive index. The sensing head is based on multimodal interference, and relies on a single-mode/large-core...

The Direct Writing of Plasmonic Gold Nanostructures via Electron Beam Induced Deposition