Optical chemo-sensor based on long period gratings coated with δ form syndiotactic polystyrene

被引：53

作者：

Pilla, P ^{[1
]}

Iadicicco, A

Contessa, L

Campopiano, S

Cutolo, A

Giordano, M

Guerra, G

Cusano, A

机构：

[1] Univ Sannio, Div Engn Dept, I-10482100 Benevento, Italy

[2] CNR, Inst Composite Mat Technol, I-8080124 Naples, Italy

[3] Univ Salerno, Dept Chem, I-84081 Baronissi, Italy

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2005年 / 17卷 / 08期

关键词：

chemical sensors; long period gratings (LPGs); syndiotactic polystyrene (sPS);

D O I：

10.1109/LPT.2005.851979

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this work, a long period grating (LPG) is coated with a thin film of syndiotactic polystyrene (sPS) in the nanoporous crystalline 6 form in order to obtain a species-specific chemical sensor. The combination of the intrinsic and high refractive index sensitivity of the LPGs with the high sorption properties toward chlorinated and aromatic compounds of sPS 6 form allows detecting very low concentrations (in the range of few parts per million) of chloroform in water. Chemical detection is carried out by measuring the wavelength shift and the amplitude changes in & attenuation band of the LPG due to analyte sorption.

引用

页码：1713 / 1715

页数：3

共 10 条

[1] Applications of long-period gratings to single and multi-parameter sensing [J].

Bhatia, V .

OPTICS EXPRESS, 1999, 4 (11) :457-466

[2]

BHATIA V, 1996, THESIS BLACKSBURG VA

[3] 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

[4] Long period gratings as solution concentration sensors [J].

Falciai, R ;

Mignani, AG ;

Vannini, A .

SENSORS AND ACTUATORS B-CHEMICAL, 2001, 74 (1-3) :74-77

[5] 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

[6]

GIORDANO M, IN PRESS SENS ACTU B

[7] Fiber-optic liquid-level sensor using a long-period grating [J].

Khaliq, S ;

James, SW ;

Tatam, RP .

OPTICS LETTERS, 2001, 26 (16) :1224-1226

[8] 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

[9] Highly sensitive chemical sensor based on the measurement of the separation of dual resonant peaks in a 100-μm-period fiber grating [J].

Shu, XW ;

Huang, DX .

OPTICS COMMUNICATIONS, 1999, 171 (1-3) :65-69

[10] Sensitivity characteristics of long-period fiber gratings [J].

Shu, XW ;

Zhang, L ;

Bennion, I .

JOURNAL OF LIGHTWAVE TECHNOLOGY, 2002, 20 (02) :255-266

← 1 →