6815 Suchergebnisse für: „“

Raman spectroscopic monitoring of the growth of pigmented and non-pigmented mycobacteria

Raman microspectroscopy has increased in popularity in the field of microbiology because it allows a spectral fingerprinting of bacterial pathogens at an unrivaled speed, which is important for the early...

Identification of vancomycin interaction with Enterococcus faecalis within 30 min of interaction time using Raman spectroscopy

Vancomycin is an important glycopeptide antibiotic which is used to treat serious infections caused by Grampositive bacteria. However, during the last years, a tremendous rise in vancomycin resistances,...

Raman spectroscopic differentiation of planktonic bacteria and biofilms

Both biofilm formations as well as planktonic cells of water bacteria such as diverse species of the Legionella genus as well as Pseudomonas aeruginosa, Klebsiella pneumoniae, and Escherichia coli were...

Discretely tunable pulsed fiber laser based on tailored FBG arrays

We present a discrete tuning concept for pulsed fiber laser using a fiber Bragg grating (FBG) array as spectral filter, which combines a fiber-integrated structure with excellent flexibility to implement...

Fiber-integrated concept to electrically tune pulsed fiber lasers based on step-chirped fiber Bragg grating arrays

We present a novel method to discretely tune the emission wavelength of pulsed fiber-integrated lasers. As spectral filter, a step-chirped fiber Bragg grating (FBG) array is employed combining a monolithic...

Clinical and Biomedical Spectroscopy and Imaging IV

Multi-Watt MHz-rate Femtosecond Mid-Infrared Source

All-fiber 10 MHz acousto-optic modulator of a fiber Bragg grating at 1060 nm wavelength

Acousto-optic modulation of a 1 cm fiber Bragg grating at 10.9 MHz frequency and 1065 nm wavelength is demonstrated for the first time. A special modulator design is employed to acoustically induce a dynamic...

Fabry-Perot cavity based on silica tube for strain sensing at high temperatures

In this work, a Fabry-Perot cavity based on a new silica tube design is proposed. The tube presents a cladding with a thickness of ~14 μm and a hollow core. The presence of four small rods, of ~20 μm...

The application of Raman spectroscopy for the detection and identification of microorganisms

A fast and reliable detection and identification of microorganisms is crucial in environmental science, for food quality as well as medical diagnosis. In these fields, all types of Raman spectroscopy are...