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Raman scattering and photoluminescence in silicon nanowire ensembles

Arrays of silicon (Si) nanowires with mean diameters of about 50–100 nm formed by wet-chemical etching of crystalline silicon wafers with low and high doping levels were investigated by means of photoluminescence...

Polymer-filled silica fibers as a step towards electro-optically tunable fiber devices

Microstructured fibers offer the possibility of being filled with unconventional materials in order to influence the propagation properties in an optical fiber waveguide. We have studied the filling of...

Nanofiber Fabry-Perot microresonator for nonlinear optics and cavity quantum electrodynamics

We experimentally realize a Fabry-Perot-type optical microresonator near the cesium D2 line wavelength based on a tapered optical fiber, equipped with two fiber Bragg gratings which enclose a sub-wavelength...

Light-Induced Dynamics in Conjugated Bis(terpyridine) Ligands – A Case Study Toward Photoactive Coordination Polymers

Terpyridine coordination compounds have recently revealed their potential toward optoelectronic applications, which are based on (i) their excellent charge-transfer properties or (ii) intriguing luminescence...

Domain Wall Dynamics in Soft Magnetic Nanostripes

Influence of transverse fields on domain wall pinning in ferromagnetic nanostripes

We report an experimental study dealing with the influence of in-plane transverse fields on the domain wall pinning in ferromagnetic nanostripes. We analyzed the pinning probability and depinning fields...

Spatial optical filter sensor based on hollow-core silica tube

A spatial optical filter based on a hollow-core silica tube is proposed. Because of the hollow-core dimensions, it is possible to obtain a periodical spatial filter ranging from 1200 to 1700 nm with a...

Nanomechanical resonators

This paper reviews a current state of the development and application of nanomechanical resonators. The basic methods of manufacturing and characterization of nanoscale mechanical resonators are described....

Quantum superposition of magnetic flux states in a superconducting loop

Results of the recent experiments have clear and convincingly demonstrated that superconducting circuits with certain parameters can be in quantum superposition of macroscopically distinct states. This...

Multiphoton transitions in Josephson-junction qubits

Two basic physical models, a two-level system and a harmonic oscillator are realized on the mesoscopic scale as coupled qubit and resonator. The realistic system includes moreover the electronics for controlling...