Electro-optically modulated lossy-mode resonance
Sensitivity, selectivity, reliability, and measurement range of a sensor are vital parameters for its wide applications. Fast growing number of various detection systems seems to justify worldwide efforts to enhance one or some of the parameters. Therefore, as one of the possible solutions, multi-do...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
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De Gruyter
2021-12-01
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| Series: | Nanophotonics |
| Subjects: | |
| Online Access: | https://doi.org/10.1515/nanoph-2021-0687 |
| _version_ | 1797947879069843456 |
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| author | Śmietana Mateusz Janaszek Bartosz Lechowicz Katarzyna Sezemsky Petr Koba Marcin Burnat Dariusz Kieliszczyk Marcin Stranak Vitezslav Szczepański Paweł |
| author_facet | Śmietana Mateusz Janaszek Bartosz Lechowicz Katarzyna Sezemsky Petr Koba Marcin Burnat Dariusz Kieliszczyk Marcin Stranak Vitezslav Szczepański Paweł |
| author_sort | Śmietana Mateusz |
| collection | DOAJ |
| description | Sensitivity, selectivity, reliability, and measurement range of a sensor are vital parameters for its wide applications. Fast growing number of various detection systems seems to justify worldwide efforts to enhance one or some of the parameters. Therefore, as one of the possible solutions, multi-domain sensing schemes have been proposed. This means that the sensor is interrogated simultaneously in, e.g., optical and electrochemical domains. An opportunity to combine the domains within a single sensor is given by optically transparent and electrochemically active transparent conductive oxides (TCOs), such as indium tin oxide (ITO). This work aims to bring understanding of electro-optically modulated lossy-mode resonance (LMR) effect observed for ITO-coated optical fiber sensors. Experimental research supported by numerical modeling allowed for identification of the film properties responsible for performance in both domains, as well as interactions between them. It has been found that charge carrier density in the semiconducting ITO determines the efficiency of the electrochemical processes and the LMR properties. The carrier density boosts electrochemical activity but reduces capability of electro-optical modulation of the LMR. It has also been shown that the carrier density can be tuned by pressure during magnetron sputtering of ITO target. Thus, the pressure can be chosen as a parameter for optimization of electro-optical modulation of the LMR, as well as optical and electrochemical responses of the device, especially when it comes to label-free sensing and biosensing. |
| first_indexed | 2024-04-10T21:34:41Z |
| format | Article |
| id | doaj.art-3f654356136e4b0f9ea3f234951c1194 |
| institution | Directory Open Access Journal |
| issn | 2192-8614 |
| language | English |
| last_indexed | 2024-04-10T21:34:41Z |
| publishDate | 2021-12-01 |
| publisher | De Gruyter |
| record_format | Article |
| series | Nanophotonics |
| spelling | doaj.art-3f654356136e4b0f9ea3f234951c11942023-01-19T12:46:59ZengDe GruyterNanophotonics2192-86142021-12-0111359360210.1515/nanoph-2021-0687Electro-optically modulated lossy-mode resonanceŚmietana Mateusz0Janaszek Bartosz1Lechowicz Katarzyna2Sezemsky Petr3Koba Marcin4Burnat Dariusz5Kieliszczyk Marcin6Stranak Vitezslav7Szczepański Paweł8Warsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662Warsaw, PolandWarsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662Warsaw, PolandWarsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662Warsaw, PolandUniversity of South Bohemia, Branisovska 31, 37005Ceske Budejovice, Czech RepublicWarsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662Warsaw, PolandWarsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662Warsaw, PolandWarsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662Warsaw, PolandUniversity of South Bohemia, Branisovska 31, 37005Ceske Budejovice, Czech RepublicWarsaw University of Technology, Institute of Microelectronics and Optoelectronics, Koszykowa 75, 00-662Warsaw, PolandSensitivity, selectivity, reliability, and measurement range of a sensor are vital parameters for its wide applications. Fast growing number of various detection systems seems to justify worldwide efforts to enhance one or some of the parameters. Therefore, as one of the possible solutions, multi-domain sensing schemes have been proposed. This means that the sensor is interrogated simultaneously in, e.g., optical and electrochemical domains. An opportunity to combine the domains within a single sensor is given by optically transparent and electrochemically active transparent conductive oxides (TCOs), such as indium tin oxide (ITO). This work aims to bring understanding of electro-optically modulated lossy-mode resonance (LMR) effect observed for ITO-coated optical fiber sensors. Experimental research supported by numerical modeling allowed for identification of the film properties responsible for performance in both domains, as well as interactions between them. It has been found that charge carrier density in the semiconducting ITO determines the efficiency of the electrochemical processes and the LMR properties. The carrier density boosts electrochemical activity but reduces capability of electro-optical modulation of the LMR. It has also been shown that the carrier density can be tuned by pressure during magnetron sputtering of ITO target. Thus, the pressure can be chosen as a parameter for optimization of electro-optical modulation of the LMR, as well as optical and electrochemical responses of the device, especially when it comes to label-free sensing and biosensing.https://doi.org/10.1515/nanoph-2021-0687electro-optical modulationlabel-free sensinglossy-mode resonancemagnetron sputteringoptical fiber sensortransparent conductive oxides (tcos) |
| spellingShingle | Śmietana Mateusz Janaszek Bartosz Lechowicz Katarzyna Sezemsky Petr Koba Marcin Burnat Dariusz Kieliszczyk Marcin Stranak Vitezslav Szczepański Paweł Electro-optically modulated lossy-mode resonance Nanophotonics electro-optical modulation label-free sensing lossy-mode resonance magnetron sputtering optical fiber sensor transparent conductive oxides (tcos) |
| title | Electro-optically modulated lossy-mode resonance |
| title_full | Electro-optically modulated lossy-mode resonance |
| title_fullStr | Electro-optically modulated lossy-mode resonance |
| title_full_unstemmed | Electro-optically modulated lossy-mode resonance |
| title_short | Electro-optically modulated lossy-mode resonance |
| title_sort | electro optically modulated lossy mode resonance |
| topic | electro-optical modulation label-free sensing lossy-mode resonance magnetron sputtering optical fiber sensor transparent conductive oxides (tcos) |
| url | https://doi.org/10.1515/nanoph-2021-0687 |
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