Sensitivity characteristics in nanosized coated long period gratings

被引：46
作者：
Cusano, Andrea
Iadicicco, Agostino
Pilla, Pierluigi
Cutolo, Antonello
Giordano, Michele
Campopiano, Stefania
机构：
[1] Univ Sannio, Dept Engn, Div Optoelect, I-8210 Benevento, Italy
[2] CNR, Inst Composite & Biomed Mat, I-80124 Naples, Italy
[3] Univ Naples Parthenope, Dept Technol, I-80131 Naples, Italy
来源：
APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 20期
关键词：
D O I：
10.1063/1.2388885
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
This work presents an experimental analysis of the sensitivity characteristics to the surrounding refractive index (SRI) in long period gratings coated with polymeric overlay with high refractive index and thickness values ranging in hundreds of nanometers. The presence of the coating induces the cladding to overlay mode transition depending on the overlay features and the SRI. The immediate consequence is a drastic modification of the sensitivity characteristics from the sublinear monotone behavior to a resonantlike shape. Here, the sensitivity characteristics of coated long period gratings have been investigated to outline their dependence on the overlay thickness and order mode. (c) 2006 American Institute of Physics.
引用
收藏
页数：3
相关论文
共 11 条
[1]   A high sensitivity refractometer based upon a long period grating Mach-Zehnder interferometer [J].
Allsop, T ;
Reeves, R ;
Webb, DJ ;
Bennion, I ;
Neal, R .
REVIEW OF SCIENTIFIC INSTRUMENTS, 2002, 73 (04) :1702-1705
[2]   Analysis of etched long-period fibre grating and its response to external refractive index [J].
Chiang, KS ;
Liu, YQ ;
Ng, MN ;
Dong, XY .
ELECTRONICS LETTERS, 2000, 36 (11) :966-967
[3]   High-sensitivity optical chemosensor based on coated long-period gratings for sub-ppm chemical detection in water [J].
Cusano, A ;
Pilla, P ;
Contessa, L ;
Iadicicco, A ;
Campopiano, S ;
Cutolo, A ;
Giordano, M ;
Guerra, G .
APPLIED PHYSICS LETTERS, 2005, 87 (23) :1-3
[4]   Mode transition in high refractive index coated long period gratings [J].
Cusano, A ;
Iadicicco, A ;
Pilla, P ;
Contessa, L ;
Campopiano, S ;
Cutolo, A ;
Giordano, M .
OPTICS EXPRESS, 2006, 14 (01) :19-34
[5]   Cladding mode reorganization in high-refractive-index-coated long-period gratings: effects on the refractive-index sensitivity [J].
Cusano, A ;
Iadicicco, A ;
Pilla, P ;
Contessa, L ;
Campopiano, S ;
Cutolo, A ;
Giordano, M .
OPTICS LETTERS, 2005, 30 (19) :2536-2538
[6]   Optimization of sensitivity in long period fiber gratings with overlay deposition [J].
Del Villar, I ;
Matías, IR ;
Arregui, FJ ;
Lalanne, P .
OPTICS EXPRESS, 2005, 13 (01) :56-69
[7]   Optical sensor based on ultrathin films of δ-form syndiotactic polystyrene for fast and high resolution detection of chloroform [J].
Giordano, M ;
Russo, M ;
Cusano, A ;
Cutolo, A ;
Mensitieri, G ;
Nicolais, L .
APPLIED PHYSICS LETTERS, 2004, 85 (22) :5349-5351
[8]   Simultaneous refractive index and temperature measurement using cascaded long-period grating in double-cladding fibre [J].
Gwandu, BAL ;
Shu, X ;
Allsop, TDP ;
Zhang, W ;
Zhang, L ;
Bennion, I ;
Bennion, I .
ELECTRONICS LETTERS, 2002, 38 (14) :695-696
[9]   Optical chemo-sensor based on long period gratings coated with δ form syndiotactic polystyrene [J].
Pilla, P ;
Iadicicco, A ;
Contessa, L ;
Campopiano, S ;
Cutolo, A ;
Giordano, M ;
Guerra, G ;
Cusano, A .
IEEE PHOTONICS TECHNOLOGY LETTERS, 2005, 17 (08) :1713-1715
[10]   Optical fiber long-period gratings with Langmuir-Blodgett thin-film overlays [J].
Rees, ND ;
James, SW ;
Tatam, RP ;
Ashwell, GJ .
OPTICS LETTERS, 2002, 27 (09) :686-688
12