Philosophie und Physik am außerschulischen Lernort
Konzepte zur Natur der Naturwissenschaften an Schule und Hochschule
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Open AccessParticle-like topologies in light
Three-dimensional (3D) topological states resemble truly localised, particle-like objects in physical space. Among the richest such structures are 3D skyrmions and hopfions, that realise integer topological nu...
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Open AccessSha** light in 3d space by counter-propagation
We extend the established transverse customization of light, in particular, amplitude, phase, and polarization modulation of the light field, and its analysis by the third, longitudinal spatial dimension, enab...
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Open AccessMulti-frequency passive and active microrheology with optical tweezers
Optical tweezers have attracted significant attention for microrheological applications, due to the possibility of investigating viscoelastic properties in vivo which are strongly related to the health status ...
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Inference in artificial intelligence with deep optics and photonics
Artificial intelligence tasks across numerous applications require accelerators for fast and low-power execution. Optical computing systems may be able to meet these domain-specific needs but, despite half a c...
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Open AccessSha** caustics into propagation-invariant light
Structured light has revolutionized optical particle manipulation, nano-scaled material processing, and high-resolution imaging. In particular, propagation-invariant light fields such as Bessel, Airy, or Mathi...
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Open AccessPolarization nano-tomography of tightly focused light landscapes by self-assembled monolayers
Recently, four-dimensional (4D) functional nano-materials have attracted considerable attention due to their impact in cutting-edge fields such as nano-(opto)electronics, -biotechnology or -biomedicine. Promin...
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Structuring and Securing Data with Holography—A Holistic Interdisciplinary Approach
Holography is known on the one hand as an optical technique to realize full three-dimensional images of objects, being as well versatile and beautiful. On the other hand, holography can also be employed for da...
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Photonik – Von der klassischen Optik zur Zukunft des Lichts
Die Photonik beschäftigt sich mit Anwendungen des Mediums Licht in ganz verschiedenen Bereichen – von der Informationsübertragung bis hin zum Einsatz von Licht in der Medizin. Der Erfolg der Photonik liegt in ...
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Open AccessEntanglement beating in free space through spin–orbit coupling
It is well known that the entanglement of a quantum state is invariant under local unitary transformations. This rule dictates, for example, that the entanglement of internal degrees of freedom of a photon rem...
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Open AccessConical Refraction Bottle Beams for Entrapment of Absorbing Droplets
Conical refraction (CR) optical bottle beams for photophoretic trap** of airborne absorbing droplets are introduced and experimentally demonstrated. CR describes the circular split-up of unpolarised light pr...
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Open AccessObservation of transverse coherent backscattering in disordered photonic structures
Coherent backscattering, also referred to as weak localization, is an exciting multidisciplinary phenomenon that appears in disordered systems of multiple coherent-wave scattering. Providing proper scattering ...
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Endoglin controls blood vessel diameter through endothelial cell shape changes in response to haemodynamic cues
The hierarchical organization of properly sized blood vessels ensures the correct distribution of blood to all organs of the body, and is controlled via haemodynamic cues. In current concepts, an endothelium-d...
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Fazit und Ausblick
Der Projektkurs „Selberdenken!“ zeigt Mölichkeiten auf, wie mit Hilfe einer naturphilosophischen Betrachtungsweise naturwissenschaftlich-technischer Themen ein tiefergehendes, authentisches Bild der Naturwisse...
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Einleitung
Das 21. Jahrhundert ist gekennzeichnet durch eine kontinuierliche Verbesserung der Lebensbedingungen und des Wohlstands durch eine ständig fortschreitende Technisierung aller Lebensbereiche, so dass wir fast t...
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Grundzüge und Anwendung der Naturphilosophie
Bis heute ist es ein zentraler Wesenszug der Naturwissenschaften, ihre Methoden und Gegenstände kritisch zu reflektieren und beispielsweise Erkenntnisansprüche oder grundlegende Konzepte zu hinterfragen. Durch...
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Ansichten über die Natur der Naturwissenschaften
Um zu erfassen, welche Ansichten ein Individuum über die Natur der Naturwissenschaften hat, betrachtet man dessen Auffassungen über die Genese, Ontologie, Bedeutung, Rechtfertigung und Gültigkeit von naturwiss...
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Selberdenken! – Ein Workshopkonzept am außerschulischen Lernort
Der einjährige Projektkurs „Selberdenken!“ hat sich zum Ziel gesetzt, über die Verbindung von Naturphilosophie und Physik in einem innovativen, experimentbasierten Workshopkonzept einen authentischen Zugang zu...
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Open AccessOptical assembly of bio-hybrid micro-robots
The combination of micro synthetic structures with bacterial flagella motors represents an actual trend for the construction of self-propelled micro-robots. The development of methods for fabrication of these ...
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Highly reduced iron-doped lithium niobate for optoelectronic tweezers
We investigate the applicability of highly reduced lithium niobate samples doped with iron for the use as optoelectronic tweezers. Increasing the reduction degree of Fe-doped lithium niobate is well known to i...
