Straightforward nano patterning on optical fiber for sensors development

被引：2
|
作者：
De Acha, Nerea [1 ]
Elia, Victor [1 ]
Delgado-Camon, Arantzazu [1 ]
Arregui, Francisco J. [1 ,2 ]
Elosua, Cesar [1 ,2 ]
机构：
[1] Univ Publ Navarra, Dept Elect Elect & Commun Engn, Campus Arrosadia, E-31006 Pamplona, Spain
[2] Univ Publ Navarra, Inst Smart Cities, Campus Arrosadia, E-31006 Pamplona, Spain
来源：
OPTICS LETTERS | 2020年 / 45卷 / 14期
关键词：
SURFACE-PLASMON RESONANCE; GOLD NANOPARTICLES; ARRAYS;
D O I：
10.1364/OL.397817
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A simple method to prepare a nano pattern along the surface of an optical fiber is applied in this Letter to develop a pH sensor. The template is made of a block copolymer that defines specific locations where gold nano particles are adsorbed on forming clusters. The average diameter of the resulting agglomerates is 121 nm, and the mean distance between the centers is 182 nm. The morphology of the gold duster array produces localized surface plasmon resonance. The absorbance spectrum is affected by pH variations, and the ratio between the absorption at two different wavelengths is used to characterize the response, which is repetitive and reversible. This Letter highlights the potentiality of this type of chemical nano patterning for the development of optical fiber sensors. (C) 2020 Optical Society of America
引用
收藏
页码：3877 / 3880
页数：4
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