Enhanced sensitivity of magneto-optical sensor using defect induced perovskite metal oxide nanomaterial

被引：15
|
作者：
Rao, Ch N. [1 ]
Dua, Piyush [2 ]
Kuchhal, Piyush [2 ]
Lu, Youming [1 ]
Kale, S. N. [3 ]
Cao, Peijiang [1 ]
机构：
[1] Shenzhen Univ, Coll Mat Sci & Engn, Guangdong Res Ctr Interfacial Engn Funct Mat, Shenzhen Engn Lab Adv Technol Ceram,Shenzhen Key, Shenzhen 518060, Peoples R China
[2] Univ Petr & Energy Studies, Dept Phys, Dehra Dun 248007, Uttarakhand, India
[3] Def Inst Adv Technol, Dept Appl Phys, Pune 411025, Maharashtra, India
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 797卷
基金：
中国国家自然科学基金;
关键词：
Optical fiber sensor; Fabry-Perot interferometer; Reflectivity; Interference; OPTICAL-PROPERTIES; LINBO3; FIELD; CRYSTALS;
D O I：
10.1016/j.jallcom.2019.05.118
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Perovskite metal oxide (LiNbO3) nanomaterial is explored as a magneto-optic sensor. The electromagnetic interaction is described by magneto-optic modulation associated with vacancy-induced room temperature ferromagnetism. The guiding and propagation through single mode fiber (SMF) is via the excitation of core modes through the material-mediated cavity and further modulated by external magnetic field. The sensitivity and resolution of the sensor are found to be 186 p.m./mT and 0.51 Oe, respectively. The structure with material integrated optical design resulting in a Fabry-Perrot interferometer (FPI), is implemented as an extrinsic sensor, and sensing mechanism is elaborated. (C) 2019 Published by Elsevier B.V.
引用
收藏
页码：896 / 901
页数：6
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