Biophotonic low-coherence sensors with boron-doped diamond thin layer

D. Milewska; K. Karpienko; M. Sobaszek; M. Jędrzejewska-Szczerska

doi:10.1117/12.2208258

7 March 2016 Biophotonic low-coherence sensors with boron-doped diamond thin layer

D. Milewska, K. Karpienko, M. Sobaszek, M. Jędrzejewska-Szczerska

Proceedings Volume 9702, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI; 97020P (2016) https://doi.org/10.1117/12.2208258
Event: SPIE BiOS, 2016, San Francisco, California, United States

Abstract

Low-coherence sensors using Fabry-Perot interferometers are finding new applications in biophotonic sensing, especially due to the rapid technological advances in the development of new materials. In this paper we discuss the possibility of using boron-doped nanodiamond layers to protect mirror in a Fabry-Perot interferometer. A low-coherence sensor using Fabry-Perot interferometer with a boron-doped nanodiamond (B-NCD) thin protective layer has been developed. B-NCD layers with different boron doping level were investigated. The boron level, expressed as the boron to carbon (/[C]) ratio in the gas phase, was: 0, 2000, 5000 or 10000 ppm. B-NCD layers were grown by chemical vapor deposition (CVD). The sensing Fabry-Perot interferometer, working in the reflective mode, was connected to the source and to the optical processor by single-mode fibers. Superluminescent diodes with Gaussian spectral density were used as sources, while an optical spectrum analyzer was used as an optical processor. The design of the sensing interferometer was optimized to attain the maximum interference contrast. The experiment has shown that B-NCD thin layers can be successfully used in biophotonic sensors.

Conference Presentation

Citation Download Citation

D. Milewska, K. Karpienko, M. Sobaszek, and M. Jędrzejewska-Szczerska "Biophotonic low-coherence sensors with boron-doped diamond thin layer", Proc. SPIE 9702, Optical Fibers and Sensors for Medical Diagnostics and Treatment Applications XVI, 97020P (7 March 2016); https://doi.org/10.1117/12.2208258

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