6814 Suchergebnisse für: „“

Experimental demonstration of optical transport, sorting and selfarrangement using a „tractor beam“

We demonstrate experimentally the principle of a "tractor beam" where a microobject is pulled against the photons flow. We show that this geometry and method can be used to delivery several microparticles...

Exploiting multimode waveguides for pure fibre based fluorescence imaging

There has been an immense drive in modern microscopy towards miniaturisation and fibre based technology. This has been necessitated by the need to access hostile or difficult environments particulalrly...

Visible Light-Activated Biocompatible Photo-CORM for CO-release with Colorimetric and Fluorometric Dual Response

We introduce a colorimetric as well as fluorometric dual response CO-releasing molecule as Mn(I) tricarbonyl complex with a nitrobenzodiazole (NBD) fluorophore. DFT and TD-DFT studies corroborate that...

The role of propagation invariant light modes in single and multi-photon imaging

Propagation invariant, 'non-diffracting' beams have found numerous applications in areas as diverse as filamentation, trapping, and photoporation. However, the prominent transverse structure of Bessel...

Approximate model for analyzing band structures of single-ring hollow-core anti-resonant fibers

Precise knowledge of modal behavior is of essential importance for understanding light guidance, particularly in hollow-core fibers. Here we present a semi-analytical model that allows determination of...

Stress-Induced Broadband 3D Chiral Fractal Metasurface

Metasurfaces comprising three-dimensional (3D) chiral structures have shown great potential in chiroptical applications such as ultra-compact chiral optical components and sensing. So far, the main challenges...

Devlopment of a miniaturized protein microarray as a new sereological IgG screening test for zoonotic agents and production diseases in pigs

In order to monitor the occurrence of zoonotic agents in pig herds as well as to improve herd health management, the development of new cost-effective diagnostic methods for pigs is necessary. In this...

An Analysis of the Optical Properties of Homogeneous Metal and Oxide Nanoparticles along with Double–Layer Nanoparticles with a Metal Core and an Oxide Shell Aimed at Improving the Efficiency of Absorption of Solar Radiation

Problems related to using nanoparticles for absorption of solar radiation and photothermal nanotechnologies are now being actively studied. The efficiency of using nanoparticles as photothermal agents...

Kompakte Sensorik für die dermatologische Diagnostik: Laser-Speckle-Photometer