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Resonance at the Rabi Frequency in a Superconducting Flux Qubit
We analyze a system composed of a superconducting flux qubit coupled to a transmission-line resonator driven by two signals with frequencies close to the resonator’s harmonics. The first strong signal...
PublicationsPowder-sintering Technique for High-power Fiber Lasers
A new approach for silica laser materials is presented. The technology is based on reactive powder doping, sintering and vitrification and yields in homogeneous active doped bulk material with an excellent...
Publicationsa-Si:H/c-Si Heterojunction solar cell based on top-down silicon nanostructures
The properties of (n)a-Si:H/(p)c-Si heterojunction solar cells based on wet chemically etched silicon nanowires with different architectures are explored. Heterojunction solar cell based on silicon nanostructures...
PublicationsNew Ruthenium Bis(terpyridine) Methanofullerene and Pyrrolidinofullerene Complexes: Synthesis and Electrochemical and Photophysical Properties
A series of terpyridine (tpy) methanofullerene and pyrrolidinofullerene dyads linked via p-phenylene or p-phenyleneethynylenephenylene (PEP) units is presented. The coordination to ruthenium(II) yields...
PublicationsStructure-Property Relationships in an Iridium(111) Bis(Terpyridine) Complex with Extended Conjugated Side chains
Iridium(III)-bis-terpyridine complexes are known as excellent triplet emitters with emission lifetimes in the order of microseconds. We report the homoleptic complex [IrL2]3+ (L = 4’-(4-2,5-bis(octyloxy)-4-styrylphenyl)ethinyl)phenyl)-2,2’:6’,2’’-terpyridine)...
PublicationsFastSIM: a practical implementation of fast structured illumination microscopy
A significant improvement in acquisition speed of structured illumination microscopy (SIM) opens a new field of applications to this already well-established super-resolution method towards 3 dimensional...
PublicationsA Fabry–Perot sensor prototype for low-pressure measurements
An interferometric Fabry–Perot cavity based on hollowcore ring photonic crystal fiber combined with a silicone diaphragm is proposed for low pressure sensing. The sensor exhibits a sensitivity of 0.086...
PublicationsVery large mode area ytterbium fiber amplifier with aluminum-doped pump cladding made by powder sinter technology
We demonstrate amplification experiments using a very large mode area Yb-doped double-clad fiber with 100 µm aluminum-cer codoped core and 440 µm pump cladding realized by high aluminum codoping. The...
PublicationsMode-resolved gain analysis and lasing in multi-supermode multi-core fiber laser
Multi-core fibers (MCFs) with coupled-cores are attractive largemode area (LMA) specialty fiber designs that support the propagation of a few transverse modes often called supermodes (SMs). Compared to...
PublicationsFormaldehyde preparation methods for pressure and temperature dependent laser-induced fluorescence measurements
Formaldehyde is an excellent tracer for the early phase of ignition of hydrocarbon fuels. It appears in high concentrations and can easily be detected using laser-induced fluorescence (LIF). However, the...
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