Physical analysis of teflon coated capillary waveguides

被引：28

作者：

Dress, P

Belz, M

Klein, KF

Grattan, KTV

Franke, H

机构：

[1] Univ Duisburg Gesamthsch, Lab Angew Phys, D-47057 Duisburg, Germany

[2] City Univ London, Dept Elect Elect & Informat Engn, London EC1V 0HB, England

[3] Fachhsch Giessen Friedberg, D-61169 Freiburg, Germany

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1998年 / 51卷 / 1-3期

关键词：

water analysis; UV spectroscopy; capillary waveguides; FD-BPM simulations;

D O I：

10.1016/S0925-4005(98)00196-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A theoretical analysis of the properties of a liquid core waveguide (LCW) formed by a water filled, teflon AF2400 inner coated glass tube is presented. The theoretical analysis is based on numerical FD-BPM simulations and reflectivity calculations of the layer system in the LCW. The improvements due to this inner coating compared to other capillary cells are shown. A teflon AF2400 layer thickness of about 5 mu m is sufficient to confine the optical intensity to the liquid core and thus avoid ally absorption or scattering by the capillary material or any influence of the outside environment. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：278 / 284

页数：7

共 21 条

[1] Low-loss liquid-core optical fiber for low-refractive-index liquids: fabrication, characterization, and application in Raman spectroscopy [J].