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Toward a spectroscopic hemogram: Raman spectroscopic differentiation of the two most abundant leukocytes from peripheral blood
The first response to infection in the blood is mediated by leukocytes. As a result crucial information can be gained from a hemogram. Conventional methods such as blood smears and automated sorting procedures...
PublikationenIdentification of minerals and organic materials in Middle Eocene ironstones from the Bahariya Depression in the Western Desert of Egypt by means of micro-Raman spectroscopy
The Middle Eocene ironstones of the Bahariya Depression consist of four iron ore types: manganiferous mud-ironstone, fossiliferous ironstone, stromatolitic ironstone and nummulitic–ooidal–oncoidal...
PublikationenPlasmonic dimer antennas for surface enhanced Raman scattering
Electron beam induced deposition (EBID) has recently been developed into a method to directly write optically active three-dimensional nanostructures. For that purpose a metal-organic precursor gas (here...
PublikationenSi and SiO detection in a HMDSO/propane/air flame using spatially resolved optical emission spectroscopy (OES)
Optical emission spectra of rich HMDSO/propane/air and propane/air flames (equivalence ratio Φ = 1.33) were recorded using an imaging spectrometer in combination with an intensified CCD camera. The probe...
PublikationenDependence of the Efficiency of Raman Scattering in Silicon Nanowire Arrays on the Excitation Wavelength
We studied features of Raman scattering in silicon nanowire (SiNW) layers of 50 – 350 nm in diameter formed by means of chemical etching of crystalline silicon (c-Si) wafers with preliminary deposited...
PublikationenMultimodal nonlinear microscopic investigations on head and neck squamous cell carcinoma: Toward intraoperative imaging
Background. Prognosis and appropriate treatment of head and neck squamous cell carcinoma (HNSCC) depend on the tumor type routinely derived by invasive histopathology. A promising non-invasive alternative...
PublikationenHalbleiter-Nanodrähte: flexible Bausteine für neuartige optische Anwendungen
Im Bereich der angewandten Physik bildet die Erforschung der optischen Eigenschaften von Halbleiter-Nanodrähten und deren kontrollierte Modifizierung die Basis für vielfältige Anwendungen vom diagnostischen...
PublikationenApproximation of the effective refractive index of surface plasmons propagating along micron-sized gold wires in photonic crystal fibers
Since the first presentation of selectively metal filled photonic crystal fibers (PCFs) in 2008, a lot of work and effort has been put in the understanding of propagation characteristics of such fibers...
PublikationenThe influence of the drawing process on the intrinsic stress in optical fibers and the arising possibility to optimize the birefringence of PM fibers
The properties of optical fibers can significantly be influenced by intrinsic stress. It is well known that these stresses are caused by various reasons, e.g. the variations in the thermal expansion coefficient...
PublikationenMulti-kW single fiber laser based on an extra large mode area fiber design
The quality of Yb-doped fused bulk silica produced by sintering of Yb-doped fused silica granulates has improved greatly in the past five years [1 – 4]. In particular, the refractive index and doping...
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