Microscale diamond protection for a ZnO coated fiber optic sensor

Monika Kosowska*, Paulina Listewnik, Daria Majchrowicz*, Michał Rycewicz, Mikhael Bechelany, Yafit Fleger, Mingzhou Chen, Dror Fixler, Kishan Dholakia, Małgorzata Szczerska*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Fiber optic sensors are widely used in environmental, biological and chemical sensing. Due to the demanding environmental conditions in which they can be used, there is a risk of damaging the sensor measurement head placed in the measuring field. Sensors using nanolayers deposited upon the fiber structure are particularly vulnerable to damage. A thin film placed on the surface of the fiber end-face can be prone to mechanical damage or deteriorate due to unwanted chemical reactions with the surrounding agent. In this paper, we investigated a sensor structure formed with a Zinc Oxide (ZnO) coating, deposited by Atomic Layer Deposition (ALD) on the tip of a single-mode fiber. A nanocrystalline diamond sheet (NDS) attached over the ZnO is described. The diamond structure was synthesized in a Microwave Plasma Assisted Chemical Vapor Deposition System. The deposition processes of the nanomaterials, the procedure of attaching NDS to the fiber end-face covered with ZnO, and the results of optical measurements are presented.
Original languageEnglish
Article number19141
Number of pages8
JournalScientific Reports
Volume10
DOIs
Publication statusPublished - 5 Nov 2020

Keywords

  • Optical properties of diamond
  • electrical and electronic engineering
  • Materials for optics

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