Phenomenon of Electromagnetic Field Resonance in Metal and Dielectric Gratings and Its Possible Practical Applications
Calculations of the field distribution in the structure of the dielectric substrate/buffer layer/volume phase grating/analyzed medium were performed. It is shown that in the presence of a buffer layer with a low refractive index in the dielectric waveguide leads to a shift of the maximum field at th...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-07-01
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| Series: | Condensed Matter |
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| Online Access: | https://www.mdpi.com/2410-3896/5/3/49 |
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| author | Stefano Bellucci Andrii Bendziak Oleksandr Vernyhor Volodymyr M. Fitio |
| author_facet | Stefano Bellucci Andrii Bendziak Oleksandr Vernyhor Volodymyr M. Fitio |
| author_sort | Stefano Bellucci |
| collection | DOAJ |
| description | Calculations of the field distribution in the structure of the dielectric substrate/buffer layer/volume phase grating/analyzed medium were performed. It is shown that in the presence of a buffer layer with a low refractive index in the dielectric waveguide leads to a shift of the maximum field at the waveguide resonance into analyzed medium. As a result, the spectral and angular sensitivity of the corresponding sensor increases. Based on the waveguide equation, analytical expressions are obtained that connect the spectral and angular sensitivity of the sensor to the sensitivity of the propagation constant change due to the refractive index change of the analyzed medium. The conditions for the excitation of the resonance of surface plasmon–polariton waves in the structure with a metal or dielectric grating on a metal substrate are also given. The fields that occur at resonance for silver and gold gratings are calculated. |
| first_indexed | 2024-03-10T18:14:25Z |
| format | Article |
| id | doaj.art-cc0f3a5922884c1592a0e7ed35793079 |
| institution | Directory Open Access Journal |
| issn | 2410-3896 |
| language | English |
| last_indexed | 2024-03-10T18:14:25Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Condensed Matter |
| spelling | doaj.art-cc0f3a5922884c1592a0e7ed357930792023-11-20T07:50:16ZengMDPI AGCondensed Matter2410-38962020-07-01534910.3390/condmat5030049Phenomenon of Electromagnetic Field Resonance in Metal and Dielectric Gratings and Its Possible Practical ApplicationsStefano Bellucci0Andrii Bendziak1Oleksandr Vernyhor2Volodymyr M. Fitio3Frascati National Laboratory-National Institute of Nuclear Physics (INFN), Via Enrico Fermi, 54, Frascati, 00044 Rome, ItalyDepartment of Photonics, Lviv Polytechnic National University, 12, S. Bandera Str., 79013 Lviv, UkraineDepartment of Photonics, Lviv Polytechnic National University, 12, S. Bandera Str., 79013 Lviv, UkraineDepartment of Photonics, Lviv Polytechnic National University, 12, S. Bandera Str., 79013 Lviv, UkraineCalculations of the field distribution in the structure of the dielectric substrate/buffer layer/volume phase grating/analyzed medium were performed. It is shown that in the presence of a buffer layer with a low refractive index in the dielectric waveguide leads to a shift of the maximum field at the waveguide resonance into analyzed medium. As a result, the spectral and angular sensitivity of the corresponding sensor increases. Based on the waveguide equation, analytical expressions are obtained that connect the spectral and angular sensitivity of the sensor to the sensitivity of the propagation constant change due to the refractive index change of the analyzed medium. The conditions for the excitation of the resonance of surface plasmon–polariton waves in the structure with a metal or dielectric grating on a metal substrate are also given. The fields that occur at resonance for silver and gold gratings are calculated.https://www.mdpi.com/2410-3896/5/3/49sensorgratingwaveguideresonancesensitivity |
| spellingShingle | Stefano Bellucci Andrii Bendziak Oleksandr Vernyhor Volodymyr M. Fitio Phenomenon of Electromagnetic Field Resonance in Metal and Dielectric Gratings and Its Possible Practical Applications Condensed Matter sensor grating waveguide resonance sensitivity |
| title | Phenomenon of Electromagnetic Field Resonance in Metal and Dielectric Gratings and Its Possible Practical Applications |
| title_full | Phenomenon of Electromagnetic Field Resonance in Metal and Dielectric Gratings and Its Possible Practical Applications |
| title_fullStr | Phenomenon of Electromagnetic Field Resonance in Metal and Dielectric Gratings and Its Possible Practical Applications |
| title_full_unstemmed | Phenomenon of Electromagnetic Field Resonance in Metal and Dielectric Gratings and Its Possible Practical Applications |
| title_short | Phenomenon of Electromagnetic Field Resonance in Metal and Dielectric Gratings and Its Possible Practical Applications |
| title_sort | phenomenon of electromagnetic field resonance in metal and dielectric gratings and its possible practical applications |
| topic | sensor grating waveguide resonance sensitivity |
| url | https://www.mdpi.com/2410-3896/5/3/49 |
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