Johannes Kepler University of Linz

About: Johannes Kepler University of Linz is a education organization based out in Linz, Oberösterreich, Austria. It is known for research contribution in the topics: Thin film & Quantum dot. The organization has 6605 authors who have published 19243 publications receiving 385667 citations.

Regional Social Legitimacy of Entrepreneurship: Implications for Entrepreneurial Intention and Start-up Behaviour

Abstract: Kibler E., Kautonen T. and Fink M. Regional social legitimacy of entrepreneurship: implications for entrepreneurial intention and start-up behaviour, Regional Studies. A new understanding of the role of regional culture in the emergence of business start-up behaviour is developed. The focal construct is regional social legitimacy: the perception of the desirability and appropriateness of entrepreneurship in a region. The econometric analysis utilizes a combination of bespoke longitudinal survey data from 65 regions in Austria and Finland, and variables capturing regional socio-economic characteristics derived from official statistics. The study demonstrates that, and explains how, regional social legitimacy influences the relationships between individual entrepreneurial beliefs, intentions and start-up behaviour and how these interaction effects are conditioned by the socio-economic characteristics of the region.

Molecular Beam Epitaxy

Abstract: MBE is a versatile technique for growing thin epitaxial structures made of semiconductors, metals or insulators [7.1] (see also the definition given in Sect. 6.1.3). What distinguishes MBE from previous vacuum deposition techniques is its significantly more precise control of the beam fluxes and growth conditions. Because of vacuum deposition, MBE is carried out under conditions far from thermodynamic equilibrium and is governed mainly by the kinetics of the surface processes occurring when the impinging beams react with the outermost atomic layers of the substrate crystal. This is in contrast to other epitaxial growth techniques, such as LPE or atmospheric pressure VPE, which proceed at conditions near thermodynamic equilibrium and are most frequently controlled by diffusion processes occurring in the crystallizing phase surrounding the substrate crystal.

An All‐Printed Ferroelectric Active Matrix Sensor Network Based on Only Five Functional Materials Forming a Touchless Control Interface

Abstract: An All-Printed Ferroelectric Active Matrix Sensor Network Based on Only Five Functional Materials Forming a Touchless Control Interface

Highly indistinguishable and strongly entangled photons from symmetric GaAs quantum dots

Abstract: The development of scalable sources of non-classical light is fundamental to unlocking the technological potential of quantum photonics Semiconductor quantum dots are emerging as near-optimal sources of indistinguishable single photons However, their performance as sources of entangled-photon pairs are still modest compared to parametric down converters Photons emitted from conventional Stranski–Krastanov InGaAs quantum dots have shown non-optimal levels of entanglement and indistinguishability For quantum networks, both criteria must be met simultaneously Here, we show that this is possible with a system that has received limited attention so far: GaAs quantum dots They can emit triggered polarization-entangled photons with high purity (g(2)(0) = 0002±0002), high indistinguishability (093±007 for 2 ns pulse separation) and high entanglement fidelity (094±001) Our results show that GaAs might be the material of choice for quantum-dot entanglement sources in future quantum technologies Scalable and integratable sources of entangled-photon pairs are an important building block for quantum photonic applications Here, Huberet al demonstrate that droplet-etched gallium arsenide quantum dots can emit highly indistinguishable photon pairs with a high degree of entanglement