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This article is cited in 5 scientific papers (total in 5 papers)
The use of higher-order modes of chalcogenide fibers for optimizing the method of the mid-IR evanescent wave spectroscopy
S. V. Korsakovaa, E. A. Vinogradovaa, E. A. Romanovaa, V. S. Shiryaevb a Saratov State University
b Institute of Chemistry of High-Purity Substances RAS, Nizhnii Novgorod
Abstract:
Based on a theoretical approach, new for evanescent wave spectroscopy, it has been shown that the dispersion properties of higher modes of a multimode chalcogenide fiber partially immersed in an absorbing medium can be used to create fiber devices that combine the functions of a supercontinuum generator and a sensing element of a spectroscopic sensor of the mid-IR range. The propagation of radiation in higher modes will allow one to control the position of the group velocity dispersion zero and to obtain a supercontinuum pumped in the near IR range. In the sensing element, the use of higher-order evanescent modes will allow for greater sensitivity and broaden the dynamic range of the sensor.
Received: 16.10.2018 Revised: 18.02.2019 Accepted: 18.02.2019
Citation:
S. V. Korsakova, E. A. Vinogradova, E. A. Romanova, V. S. Shiryaev, “The use of higher-order modes of chalcogenide fibers for optimizing the method of the mid-IR evanescent wave spectroscopy”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 45:10 (2019), 17–21; Tech. Phys. Lett., 45:5 (2019), 489–493
Linking options:
https://www.mathnet.ru/eng/pjtf5432 https://www.mathnet.ru/eng/pjtf/v45/i10/p17
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