Excitation and spectral dependence of the rise and decay time responses of Eu2+- and Dy3+-doped strontium aluminates

Journal of Materials Science: Materials in Electronics - In this paper, we study the phosphorescence rise and decay time responses of Eu2+- and Dy3+-doped strontium aluminates prepared by different...     

An essay in combinatory dynamic logic

We propose a refinement of Kripke modal logic, and in particular of PDL.     

A differential fiber-optic transducer for hydrostatic pressure measurement

A fiber-optic linear displacement sensor is developed to measure radial deformations in a free active element bulk-modulus transducer under high hydrostatic pressure. The response of the sensor was found to be practically linear within the range of 1000 bar and a 1.5% accuracy has been confirmed.     

Low-noise bimodal all-fibre sensor using depolarized light

Abstract

A low-noise scheme for an all-fibre bimodal sensor is presented. Depolarized excitation of the sensor from a lower coherency source is used to eliminate polarimetric noises which inevitably arise due to polarizer/analyser and fibre-to-fibre misalignments. The sensor features simplicity and simultaneous detection of the X- and Y-polarized interference signals. Overall noise level as low as 0.8% is achieved.