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Improved surface coverage of an optical fibre with nanocrystalline diamond by the application of dip-coating seeding
Abstrakt
Growth processes of diamond thin films on the fused silica optical fibres (10 cm in length) were investigated at various temperatures. Fused silica pre-treatment by dip-coating in a dispersion consisting of detonation nanodiamond (DND) in dimethyl sulfoxide (DMSO) with polyvinyl alcohol (PVA) was applied. Nanocrystalline diamond (NCD) films were deposited on the fibres using the microwave plasma assisted chemical vapour deposition (MW PA CVD) method. The longitudinal variation of NCD morphology, structure and optical parameters were specifically investigated. The evolution of the film morphology and film thickness along the fibre length was studied using scanning electron microscopy (SEM). The chemical composition of the NCD film was examined with micro-Raman Spectroscopy. The sp3/sp2 band ratio was calculated using the Raman spectra deconvolution method. An approximately 5 cm-long homogeneous diamond film has been obtained on the surface of the fibre sample. Thickness, roughness and optical properties of NCD films in the VIS–NIR range were investigated on the reference quartz slides using spectroscopic ellipsometry. The samples exhibited relatively low deviations of refractive index (2.3 ± 0.25) and extinction coefficient (0.05 ± 0.02) along the length of 5 cm, as estimated at a wavelength of 550 nm. In order to show the effectiveness of deposition process on optical fibres, diamond films were also grown on the fibre with induced long-period grating (LPG). The results of transmission measurements demonstrated that an LPG with diamond overlay exhibits the appropriate dependency on the optical properties of external medium. Thus, the deposition process has a negligible effect on the fibre transmission properties.
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Autorzy (9)
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Wojtek J. Bock
- Université du Québec en Outaouais Centre de recherche en photonique
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Mateusz Śmietana
- Warsaw University of Technology Institute of Microelectronics and Optoelectronics
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Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuł w czasopiśmie wyróżnionym w JCR
- Opublikowano w:
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DIAMOND AND RELATED MATERIALS
nr 55,
strony 52 - 63,
ISSN: 0925-9635 - Język:
- angielski
- Rok wydania:
- 2015
- Opis bibliograficzny:
- Bogdanowicz R., Sobaszek M., Ryl J., Gnyba M., Ficek M., Gołuński Ł., Bock W., Śmietana M., Darowicki K.: Improved surface coverage of an optical fibre with nanocrystalline diamond by the application of dip-coating seeding// DIAMOND AND RELATED MATERIALS. -Vol. 55, (2015), s.52-63
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.diamond.2015.03.007
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 171 razy
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