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A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
Published on: January 7, 2019
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Microscale diamond protection for a ZnO coated fiber optic sensor
Monika Kosowska1, Paulina Listewnik2, Daria Majchrowicz3,4
1Department of Metrology and Optoelectronics, Faculty of Electronics, Telecommunications and Informatics, Gdańsk University of Technology, 11/12 Narutowicza Street, 80-233, Gdańsk, Poland. monkosow@student.pg.edu.pl.
Scientific Reports
|November 6, 2020
Summary
This study presents a novel fiber optic sensor design featuring a protective Zinc Oxide (ZnO) coating and a nanocrystalline diamond sheet (NDS). This enhanced structure aims to improve the durability of sensors used in harsh environmental conditions.
Area of Science:
- Materials Science
- Optoelectronics
- Nanotechnology
Background:
- Fiber optic sensors are crucial for environmental, biological, and chemical sensing.
- Sensor measurement heads, especially those with nanolayers, are vulnerable to damage in demanding conditions.
- Thin films on fiber end-faces risk mechanical damage and chemical degradation.
Purpose of the Study:
- To investigate a robust sensor structure for fiber optic sensing.
- To develop a protective coating for vulnerable nanolayered fiber optic sensors.
- To demonstrate the fabrication and optical measurement of a ZnO-coated fiber optic sensor with an NDS.
Main Methods:
- Deposition of Zinc Oxide (ZnO) nanolayers on single-mode fiber tips using Atomic Layer Deposition (ALD).
- Synthesis of nanocrystalline diamond sheets (NDS) via Microwave Plasma Assisted Chemical Vapor Deposition.
- Attachment of NDS onto the ZnO-coated fiber end-face.
Main Results:
- Successful deposition of ZnO nanolayers and NDS on fiber optic sensor tips.
- Demonstration of the attachment procedure for the protective NDS.
- Presentation of optical measurement results for the novel sensor structure.
Conclusions:
- The developed sensor structure with ZnO coating and NDS offers enhanced protection for fiber optic sensors.
- The fabrication methods are suitable for creating durable sensing elements.
- This approach holds promise for improving sensor reliability in challenging environments.
