6558 Search results for: „“
The Viscous Behavior of Synthetic Silica Glass Tubes During Collapsing
The viscous flow of pure and fluorine-doped silica tubes is studied by collapsing. The demonstrated method can be applied directly during MCVD preform preparation. By several experiments with different...
Research results | 23.04.2018
SERS Application in Environmental and Medical Science
Surface-enhanced Raman spectroscopy (SERS) offers both a molecularly-specific and sensitive analysis of low molecular weight substances even in complex matrices. It is used for environmental issues such...
Research results | 23.04.2018
Endoscopic fiber probe for non-linear spectroscopic imaging
In collaboration with GRINTECH, a fiber probe was developed for the first time at IPHT, which uses an imaging fiber to generate multimodal images of biological tissue. Using a clever optical design, the...
Research results | 23.04.2018
Influence of the Biological Environment on the Photophysics of Photosensitizers
The efficiency of a photosensitizer used in photodynamic therapy is mainly defined by the photophysical processes that take place after light excitation. It should be noted that the environment in biological...
Research results | 12.04.2018
Blocked Energy Transfer in a Multi-excited, Multi-nuclear Transition Metal Complex
In a model complex for an artificial light collection unit, in which one iron-polypyridine chromophore and two ruthenium-polypyridine chromophores are connected to each other, the energy transfer from...
Research results | 12.04.2018
Charge Separation in Functionalized CdSe@CdS Nanorods – Influence of the Size of the Metal Particle
CdSe@CdS nanorods functionalized with metal nanoparticles are efficient photocatalysts for generating hydrogen from water. The catalytic efficiency depends heavily on the size of the metal nanoparticle,...
Research results | 12.04.2018
Guiding Light in Anti-Resonant Hollow-core Fibers
In this contribution, we will describe an analytical model for the effective index of anti-resonant fibers. Since in all practically-relevant cases the core diameter is large in comparison to the wavelength,...
Research results | 12.04.2018
Highly Coherent Supercontinuum Generation in Liquid-Core Fibers
Retarded molecular processes in liquid-core fibers have a decisive effect on the broadband, nonlinear light generation known as supercontinuum generation. A reduction in bandwidth while improving the coherence...
Research results | 12.04.2018
Micro and Nanofabricated Targets for High-energy Physical Experiments
IPHT works globally with scientists on new physical methods and develops test objects tailored specifically to particular experiments (e.g., multilayered targets for verifying the nanoscale axial resolution...
Research results | 12.04.2018
Tapered Fiber Amplifiers Prepared by Powder Sintering Technology for Peak Power Scaling and Beam Quality Improvement
The use of short local tapers in large mode area fiber amplifiers is proposed for peak powerscaling while maintaining good beam quality. To avoid modal distortions, the powder sintering technology (REPUSIL)...
Research results | 12.04.2018