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An ion trap built with photonic crystal fibre technology

We demonstrate a surface-electrode ion trap fabricated using techniques transferred from the manufacture of photonic-crystal fibres. This provides a relatively straightforward route for realizing traps...

Background-Free Bottom-Up Plasmonic Arrays with Increased Sensitivity, Specificity and Shelf Life for SERS Detection Schemes

In utilizing the exceptional optical properties of metallic nanoparticles, surface enhanced Raman spectroscopy (SERS) is an excellent candidate for analytical detection schemes due to its molecular specificity...

Curvature-induced geometric momenta: the origin of waveguide dispersion of surface plasmons on metallic wires

We show that the propagation of surface plasmon polaritons (SPPs) on metallic wires is governed by two solely curvature-induced geometric momenta, leading to a significant modification of the waveguide...

Non-Newtonian flow of an ultralow-melting chalcogenide liquid in strongly confined geometry

The flow of high-viscosity liquids inside micrometer-size holes can be substantially different from the flow in the bulk, non-confined state of the same liquid. Such non-Newtonian behavior can be employed...

An AC Josephson Voltage Standard up to the Kilohertz Range Tested in a Calibration Laboratory

This paper describes the development of an automated ac quantum voltmeter toward a turnkey system, which can be used for calibration of common dc and ac voltage standards. The setup was tested in an accredited...

Tip-enhanced Raman scattering—Targeting structure-specific surface characterization for biomedical samples

Tip-enhanced Raman scattering (TERS) has become a powerful tool for nanoscale structural analysis for several branches of organic, inorganic and biological chemistry. This highly sensitive technique enables...

Bessel beam CARS of axially structured samples

We report about a Bessel beam CARS approach for axial profiling of multi-layer structures. This study presents an experimental implementation for the generation of CARS by Bessel beam excitation using...

Optimized emitter contacting on multicrystalline silicon thin film solar cells

We present an optimized contacting scheme for multicrystalline silicon thin film solar cells on glass based on epitaxially crystallized emitters with a thin Al2O3 layer and a silver back reflector. In...

Watt-Level Megahertz-rate Femtosecond Mid-Infrared Source

Spectral broadening and peak power limitations of normally dispersive photonic Crystal fibres for high-power fs light sources

Peak power and peak irradiance limitations of photonic crystal fibres with various mode-field-diameters are investigated with 250-fs input pulses. Maximal spectral broadening factors increase with decreasing...