Modification of the refractive index response of long period gratings using thin film overlays

被引：69

作者：

Ishaq, IM

Quintela, A

James, SW ^{[1
]}

Ashwell, GJ

Lopez-Higuera, JM

Tatam, RP

机构：

[1] Cranfield Univ, Sch Engn, Opt Sensors Grp, Ctr Photon & Opt Engn, Bedford MK4 30AL, England

[2] Cranfield Univ, Sch Engn, Nanomat Grp, Bedford MK4 30AL, England

[3] Univ Cantabria, Grp Ingn Foton, ETSII & Telecommun, E-39005 Santander, Spain

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 2005年 / 107卷 / 02期

基金：

英国工程与自然科学研究理事会;

关键词：

long period gratings; refractive index; transmission spectrum; Langmuir-Blodgett;

D O I：

10.1016/j.snb.2004.12.004

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The response of a fibre optic long period grating (LPG) to the surrounding refractive index is shown to be modified by the deposition of a thin film of thickness of order 100 nm onto the cladding. The LPG becomes sensitive to surrounding refractive indices greater than that of silica, and exhibits an enhanced sensitivity to external refractive indices lower than that of silica, (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：738 / 741

页数：4

共 19 条

[1] Detection of organic aromatic compounds in paraffin by a long-period fiber grating optical sensor with optimized sensitivity [J].