Gain Properties of the Single Cell of a One-Dimensional Photonic Crystal with PT Symmetry
In this paper, an analysis of gain properties of a single primitive cell of a one-dimensional photonic crystal with parity–time symmetry is demonstrated for the first time. The proposed simple model makes it possible to study the transmission and amplification properties of the investigated cell mad...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-02-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/2/258 |
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| author | Piotr Witoński Agnieszka Mossakowska-Wyszyńska Paweł Szczepański |
| author_facet | Piotr Witoński Agnieszka Mossakowska-Wyszyńska Paweł Szczepański |
| author_sort | Piotr Witoński |
| collection | DOAJ |
| description | In this paper, an analysis of gain properties of a single primitive cell of a one-dimensional photonic crystal with parity–time symmetry is demonstrated for the first time. The proposed simple model makes it possible to study the transmission and amplification properties of the investigated cell made of a wide range of optical materials, taking into account the refractive index of the surrounding medium. This analysis is carried out with the use of a transfer matrix method. The obtained characteristics allow indicating the optimal size of the studied structure providing wave amplification, i.e., a transmittance greater than unity. In this case, the increase in the wave intensity in the gain layer exceeds its decrease in the loss layer. This effect is illustrated with the distributions of the electromagnetic field of waves propagating inside the cell. |
| first_indexed | 2024-03-11T08:58:20Z |
| format | Article |
| id | doaj.art-dae09a889bee435daa6b47e7216f97f1 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-11T08:58:20Z |
| publishDate | 2023-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-dae09a889bee435daa6b47e7216f97f12023-11-16T19:55:41ZengMDPI AGCrystals2073-43522023-02-0113225810.3390/cryst13020258Gain Properties of the Single Cell of a One-Dimensional Photonic Crystal with PT SymmetryPiotr Witoński0Agnieszka Mossakowska-Wyszyńska1Paweł Szczepański2Institute of Microelectronics and Optoelectronics, Warsaw University of Technology, Koszykowa 75, 00-665 Warsaw, PolandInstitute of Microelectronics and Optoelectronics, Warsaw University of Technology, Koszykowa 75, 00-665 Warsaw, PolandInstitute of Microelectronics and Optoelectronics, Warsaw University of Technology, Koszykowa 75, 00-665 Warsaw, PolandIn this paper, an analysis of gain properties of a single primitive cell of a one-dimensional photonic crystal with parity–time symmetry is demonstrated for the first time. The proposed simple model makes it possible to study the transmission and amplification properties of the investigated cell made of a wide range of optical materials, taking into account the refractive index of the surrounding medium. This analysis is carried out with the use of a transfer matrix method. The obtained characteristics allow indicating the optimal size of the studied structure providing wave amplification, i.e., a transmittance greater than unity. In this case, the increase in the wave intensity in the gain layer exceeds its decrease in the loss layer. This effect is illustrated with the distributions of the electromagnetic field of waves propagating inside the cell.https://www.mdpi.com/2073-4352/13/2/258photonic crystalparity–time symmetrytransfer matrix method |
| spellingShingle | Piotr Witoński Agnieszka Mossakowska-Wyszyńska Paweł Szczepański Gain Properties of the Single Cell of a One-Dimensional Photonic Crystal with PT Symmetry Crystals photonic crystal parity–time symmetry transfer matrix method |
| title | Gain Properties of the Single Cell of a One-Dimensional Photonic Crystal with PT Symmetry |
| title_full | Gain Properties of the Single Cell of a One-Dimensional Photonic Crystal with PT Symmetry |
| title_fullStr | Gain Properties of the Single Cell of a One-Dimensional Photonic Crystal with PT Symmetry |
| title_full_unstemmed | Gain Properties of the Single Cell of a One-Dimensional Photonic Crystal with PT Symmetry |
| title_short | Gain Properties of the Single Cell of a One-Dimensional Photonic Crystal with PT Symmetry |
| title_sort | gain properties of the single cell of a one dimensional photonic crystal with pt symmetry |
| topic | photonic crystal parity–time symmetry transfer matrix method |
| url | https://www.mdpi.com/2073-4352/13/2/258 |
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