6814 Suchergebnisse für: „“

Towards a quantitative SERS approach – online monitoring of analytes in a microfluidic system with isotope-edited internal standards

In this contribution a new approach for quantitative measurements using surface-enhanced Raman spectroscopy (SERS) is presented. Combining the application of isotope-edited internal standard with the advantages...

Type IIA Grating Inscription in a Highly Nonlinear Microstructured Optical Fiber

The fabrication of Type IIA Bragg reflectors in a highly Ge-doped microstructured optical fiber using 193-nm 10-ns laser radiation is reported. Refractive index evolution curves for both average and modulated...

Distinguishing and characterizing hair follicle tissue layers using fourier transform infrared spectroscopy

Higher Order HTSC Gradiometer for Measurements in Unshielded Environment

We present a new higher order gradiometer layout for bicrystal Josephson junctions based on high-temperature superconducting thin films. Our single layer gradiometers are suitable for the simultaneous...

Fast exact scalar propagation for an in-line holographic microscopy on the diffraction limit

Development of pH-sensitive indicator dyes for the preparation of micro-patterned optical sensor layers

Functional hydroxyazobenzene dyes for optically monitoring pH in the range from 6 to 10 were synthesised. The pKa values of the dyes have been tailored by appropriate choice of substituents in position...

Chip-based detection methods

Suitability of infrared spectroscopic imaging as an intraoperative tool in cerebral glioma surgery

Infrared spectroscopic imaging is a promising intraoperative tool which enables rapid, on-site diagnosis ofbrain tumors during neurosurgery. A classification model was recently developed using infrared...

A guide to super-resolution fluorescence microscopy

For centuries, cell biology has been based on light microscopy and at the same time been limited by its optical resolution. However, several new technologies have been developed recently that bypass this...

Thermo-Optic Switching Effect Based on Fluid-Filled Photonic Crystal Fiber

We report a thermo-optic switching effect with a high extinction ratio of 30 dB by means of filling a fluid into air holes of a solid-core photonic crystal fiber (PCF). Such an effect can perform a turn...