Tianxi Wang

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A magnetic sensor based on a hybrid long-period fiber grating (HLPFG) and an ester-based Fe<sub>3</sub>O<sub>4</sub> magnetic fluid (MF) has been proposed and experimentally investigated. The Fe<sub>3</sub>O<sub>4</sub> MF and HLPFG are encapsulated in a capillary tube using paraffin. The sensor is sensitive to a vertical magnetic field and environmental(More)
In this paper, a wafer-level package for a microwave transmission system has been implemented and tested. Three Monolithic Microwave Integrated Circuits (MMICs) packaged in one microwave system are first proposed. The packaged system consists of an up-converter, a drive amplifier and a power amplifier. All the modules are embedded in the cavities pre-etched(More)
Thin film multilayer technologies adapted from wafer level packaging offer a very promising approach for the implementation of integrated passive devices, which have become increasingly popular these years. In this paper, we present a novel fabrication technique which combines wafer level packaging (WLP) and Micro-Electro-Mechanic System (MEMS) technologies(More)
A sensitive and selective fluorescent probe for histidine has been designed by taking the advantages of the click chemistry reaction (copper(I)-catalyzed azides and alkynes cycloaddition) and the inhibition of copper(II)-induced ascorbate oxidation by histidine. The fluorescence intensity decreases with the increasing of histidine concentration, and the(More)
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