6814 Suchergebnisse für: „“
Correlations between photocatalytic activity and chemical structure of Cu-modified TiO2-SiO2 nanoparticle composites
Copper-modified TiO2-SiO2 photocatalysts were prepared by sol-gel method based on organic copper, silicon and titanium precursors. Copper concentration varied from 0.1 to 3.0 mol%. A widely applied model...
PublikationenUnderwater pulse electrical diaphragm discharges for surface treatment of fibrous polymeric materials
Preliminary results on physical characteristics of pulsed underwater diaphragm electrical discharges are presented. The discharges burning in tap water, water-chelaton solutions, and some other water-based...
PublikationenHF plasma pencil and DC diaphragm discharge in liquids – diagnostics and applications
The plasma device for fine hand manipulation called "plasma pencil" and diaphragm discharges is a special type of plasma nozzle generating high pressure non-isothermal plasma for different possible applications...
PublikationenAutomated laser guidance of neuronal growth cones using a spatial light modulator
The growth cone of a developing neuron can be guided using a focused infra-red (IR) laser beam [1]. In previous setups this process has required a significant amount of user intervention to adjust continuously...
PublikationenHolographic display system for restoration of sight to the blind
Objective. We present a holographic near-the-eye display system enabling optical approaches for sight restoration to the blind, such as photovoltaic retinal prosthesis, optogenetic and other photoactivation...
PublikationenRealization of curved Bessel beams: propagation around obstructions
We present an experimental realization of spiraling and snaking zero-order Bessel beams; light modes designed to deviate from straight-line propagation. We show that these modes can be generated with a...
PublikationenOptical aberration compensation in a multiplexed optical trapping system
In this paper we discuss optical aberrations within a multiplexed optical trapping system. We analyze two of the most powerful methods for optical trap multiplexing: time-shared beam steering and holographic...
PublikationenMultiple optical trapping and binding: new routes to self-assembly
The impact of optical forces in the physical and biological sciences now enables the manipulation of objects ranging in size from a cell down to a single atom. The mechanical effects of optical fields...
PublikationenThe holographic optical micro-manipulation system based on counter-propagating beams
We present a system employing a dynamic diffractive optical element to control properties of two counter-propagating beams overlapping within a sample chamber. This system allows us to eliminate optical...
PublikationenBidirectional Optical Sorting of Gold Nanoparticles
We present a generic technique allowing size-based all-optical sorting of gold nanoparticles. Optical forces acting on metallic nanoparticles are substantially enhanced when they are illuminated at a wavelength...
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