6558 Search results for: „“
Deactivation of Yb3+ ions due to photodarkening
We carefully examined the fluorescence properties of Yb-doped fibers before and after pump-induced photodarkening (PD) and found a significant reduction of Yb3+ fluorescence intensity and lifetime due...
PublicationsToward improving fine needle aspiration cytology by applying Raman microspectroscopy
Medical diagnosis of biopsies performed by fine needle aspiration has to be very reliable. Therefore, pathologists/cytologists need additional biochemical information on single cancer cells for an accurate...
PublicationsVibrational spectra and dispersion analysis of K2Ni(SeO4)2•6H2O Tutton salt single crystal doped with K2Ni(SO4)2•6H2O
Dispersion analysis of the polarized IR reflectance spectra of K2Ni(SeO4)2•6H2O doped with K2Ni(SO4)2•6H2O has been performed. Vibrational parameters like oscillator strength, attenuation constant...
PublicationsFabrication and characterization of a “continuous Fiber Bragg Grating fiber” using Draw Tower Grating Technology
In this paper we present new technical developments for the fabrication of low reflective fiber Bragg grating (FBG) chains in “continuous FBG fiber” configuration. Such chains consist of several thousand...
PublicationsInscription of first order Fiber Bragg Gratings in sapphire fibers by 400 nm femtosecond laser pulses
Fiber Bragg gratings (FBG) are suitable for measurements in harsh environments, because they are inert to electromagnetic radiation, very small, robust and embeddable into different compound materials....
PublicationsThe effect of Antimonate, Arsenate and Phosphate on the transformation of Ferrihydrite to Geothite, Hematite, Feroxyhyte and Tripuhyte
Iron oxides, typical constituents of many soils, represent a natural immobilization mechanism for toxic elements. Most iron oxides are formed during the transformation of poorly crystalline ferrihydrite...
PublicationsTumor margin identification and prediction of the primary tumor from brain metastases using FTIR imaging and support vector machines
Infrared spectroscopy enables the identification of tissue types based on their inherent vibrational fingerprint without staining in a nondestructive way. Here, Fourier transform infrared microscopic images...
PublicationsSynthese neuartiger Glaspulver mittels Plasmaflammensphärodisierung – technologischer Stand und Resultate
Es wird über eine Technologie berichtet, die die Verwertung eines industriellen Abfallproduktes und daraus die Synthese neuartiger Quarzglaspulver beinhaltet. Ziel ist es, hochreine und dotierte Pulver...
PublicationsDry-reagent-based PCR as a novel tool for the rapid detection of Clostridium spp.
Improved conventional PCR techniques are required for the rapid on-site detection of human and animal diseases. In this context, a PCR method using dry stored reagents intended for the detection of Clostridium...
PublicationsPlasmonische Strukturen für die Bioanalytik
Plasmonische Strukturen sind aufgrund ihrer feldverstärkenden und besonderen optischen Eigenschaften ein leistungsstarkes Mittel im Bereich der bioanalytischen Spektroskopie. Als prominentes Beispiel...
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