6814 Suchergebnisse für: „“
Physics-informed neural networks for etaloning correction in Raman spectra using inverse modeling
Raman spectroscopy, valued for its ability to provide detailed molecular fingerprints, plays a crucial role in industrial and academic research. However, optical artifacts, such as etaloning, often compromise...
PublikationenSpecialty capillaries and multi-core optical fibres for applications in imaging and multi-modal spectroscopy
We present examples of recent developments on specialty optical fibers at Leibniz-IPHT. A dual-core dual-clad fiber for multi-modal analyses was fabricated by a stack and draw technique, where MCVD Ge-doped...
PublikationenCorrelated micro-spectroscopic labelling and analysis of leukocytes
We demonstrate identification of unstained leukocytes (white blood cells) in a full blood smear by discrete wavenumber mid-infrared (IR) imaging and spectroscopy. Using the novel technique of optical photothermal...
PublikationenPhysics-guided foundation model for universal speckle removal in ultrathin multimode fiber imaging
Ultrathin multimode fibers (MMFs) promise endoscopes with hair-scale diameters for accessing sub-millimeter anatomy, but in MMF far-field imaging the required small collection aperture drives speckle-dominated...
PublikationenDeformation enduring conveyance of structured light through multimode waveguides and its exploitation for flexible hair-thin endoscopes
Confocal and multi-photon microscopy are widely used for in-vivo fluorescence imaging of biological tissues such as the brain, offering non-invasive access up to ~1 mm depth without major loss in performance....
PublikationenHair-thin confocal fluorescence endo-microscopy for deep-brain in-vivo imaging
Confocal and multi-photon microscopy are widely used for in-vivo fluorescence imaging of biological tissues such as the brain, offering non-invasive access up to ~1 mm depth without major loss in performance....
PublikationenFunnelling super-resolution STED microscopy through multimode fibres
Holographic multimode fibre endoscopes have recently shown their ability to unveil and monitor deep brain structures with sub-micrometre resolution, establishing themselves as a minimally-invasive technology...
PublikationenLight Storage in Light Cages: A Scalable Platform for Multiplexed Quantum Memories
Quantum memories are essential for photonic quantum technologies, enabling long-distance quantum communication and serving as delay units in quantum computing. Hot atomic vapors using electromagnetically...
PublikationenYb-Doped Large Mode Area Fibers Produced by Powder Sintering for High Peak Power Narrow-Linewidth Laser Source
In the last decades, Yb-doped fiber lasers proved their capabilities to deliver high average power in pulsed regime with excellent efficiencies and high beam quality [1]. To mitigate the non-linear effects...
PublikationenExploring glass powder doping of YPO4:Yb3+ nanocrystal-doped fibers towards achieving optical gain
Nanoparticle-doped fibers are a promising way to extend functionalities of optical fibers. We are exploring glass powder doping for incorporating nanocrystals (NCs) into fibers, where the NCs survive the...
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