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- Title
Low‐Coherence Interferometer with Nanocrystalline Diamond Films with Potential Application to Measure Small Biological Samples.
- Authors
Hirsch, Marzena; Kosowska, Monika; Majchrowicz, Daria; Struk, Przemysław; Wierzba, Paweł; Ficek, Mateusz; Sankaran, Kamatchi J.; Haenen, Ken; Jędrzejewska‐Szczerska, Małgorzata
- Abstract
The study investigates a case of a low‐coherence fiber‐optic Fabry–Pérot interferometer with a nanocrystalline diamond (NCD) mirror. The method of achieving double density of interference fringes is proposed by the application of birefringent material in the cavity of the interferometer. It can be used to reduce sample volume in comparison to conventional interferometers. The use of a biocompatible diamond mirror makes it specifically well suited for application in biosensing. The fabrication process and surface characterization of the nitrogen‐doped NCD and boron‐doped NCD films are described. The results of numerical modeling and experimental measurements are discussed. The application of boron‐doped diamond and nitrogen‐doped diamond films as a mirror in a fiber‐optic Fabry–Pérot interferometer is presented. This enables performing biomedical measurements. The birefringent material is introduced into sensor cavity which allows us to reduce the sample volume for measurements. This could be useful in case of biological samples.
- Subjects
INTERFEROMETERS; NANODIAMONDS; METAL fabrication; DOPING agents (Chemistry); BIREFRINGENT coatings
- Publication
Physica Status Solidi. A: Applications & Materials Science, 2018, Vol 215, Issue 22, pN.PAG
- ISSN
1862-6300
- Publication type
Article
- DOI
10.1002/pssa.201800244