Double-wavelength coherent perfect absorption laser in Thue-Morse PT-symmetric photonic crystals
Coherent perfect absorption laser points (CPA-LPs) are investigated in the Thue-Morse (Th-M) PT-symmetric photonic crystals. CPA-LPs are induced as incident light impinges perpendicularly upon the structure. The operating wavelengths of the CPA-LPs are dependent on the Th-M sequence number, the inci...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-08-01
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| Series: | Results in Physics |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2211379722004193 |
| _version_ | 1811294670003634176 |
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| author | Dong Zhao Guopeng Zhou Yang Wang Fanghua Liu Haihong Xu Hao Ni |
| author_facet | Dong Zhao Guopeng Zhou Yang Wang Fanghua Liu Haihong Xu Hao Ni |
| author_sort | Dong Zhao |
| collection | DOAJ |
| description | Coherent perfect absorption laser points (CPA-LPs) are investigated in the Thue-Morse (Th-M) PT-symmetric photonic crystals. CPA-LPs are induced as incident light impinges perpendicularly upon the structure. The operating wavelengths of the CPA-LPs are dependent on the Th-M sequence number, the incident angle and the gain-loss factor of materials. Especially, two CPA-LPs may be achieved with the same value of incident angle for a specific gain-loss factor. Double-wavelength laser consequently is supported in this structure and the corresponding transmittance of the CPA-LPs is optional. An abrupt jump in the calculated reflection coefficient phase could be found at the CPA-LPs as well. This study may be helpful in potential applications for lasers and highly sensitive sensors. |
| first_indexed | 2024-04-13T05:20:52Z |
| format | Article |
| id | doaj.art-2fe75827cdc242258fd92ac120495cf9 |
| institution | Directory Open Access Journal |
| issn | 2211-3797 |
| language | English |
| last_indexed | 2024-04-13T05:20:52Z |
| publishDate | 2022-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Physics |
| spelling | doaj.art-2fe75827cdc242258fd92ac120495cf92022-12-22T03:00:44ZengElsevierResults in Physics2211-37972022-08-0139105746Double-wavelength coherent perfect absorption laser in Thue-Morse PT-symmetric photonic crystalsDong Zhao0Guopeng Zhou1Yang Wang2Fanghua Liu3Haihong Xu4Hao Ni5School of Electronic and Information Engineering, Hubei University of Science and Technology, Xianning 437100, China; Optical Electromechanical and Intelligent Manufacturing Laboratory, Hubei University of Science and Technology, Xianning 437100, ChinaEngineering Technology Institute, Hubei University of Science and Technology, Xianning 437100, ChinaSchool of Electronic and Information Engineering, Hubei University of Science and Technology, Xianning 437100, China; Optical Electromechanical and Intelligent Manufacturing Laboratory, Hubei University of Science and Technology, Xianning 437100, ChinaSchool of Electronic and Information Engineering, Hubei University of Science and Technology, Xianning 437100, China; Optical Electromechanical and Intelligent Manufacturing Laboratory, Hubei University of Science and Technology, Xianning 437100, ChinaInformation Center, Hubei University of Science and Technology, Xianning 437100, ChinaSchool of Electronic and Information Engineering, Hubei University of Science and Technology, Xianning 437100, China; Optical Electromechanical and Intelligent Manufacturing Laboratory, Hubei University of Science and Technology, Xianning 437100, China; Corresponding author at: School of Electronic and Information Engineering, Hubei University of Science and Technology, Xianning 437100, China.Coherent perfect absorption laser points (CPA-LPs) are investigated in the Thue-Morse (Th-M) PT-symmetric photonic crystals. CPA-LPs are induced as incident light impinges perpendicularly upon the structure. The operating wavelengths of the CPA-LPs are dependent on the Th-M sequence number, the incident angle and the gain-loss factor of materials. Especially, two CPA-LPs may be achieved with the same value of incident angle for a specific gain-loss factor. Double-wavelength laser consequently is supported in this structure and the corresponding transmittance of the CPA-LPs is optional. An abrupt jump in the calculated reflection coefficient phase could be found at the CPA-LPs as well. This study may be helpful in potential applications for lasers and highly sensitive sensors.http://www.sciencedirect.com/science/article/pii/S2211379722004193Coherent perfect absorptionLaser pointsDouble-wavelengthPT-symmetryThue-Morse sequencePhotonic crystal |
| spellingShingle | Dong Zhao Guopeng Zhou Yang Wang Fanghua Liu Haihong Xu Hao Ni Double-wavelength coherent perfect absorption laser in Thue-Morse PT-symmetric photonic crystals Results in Physics Coherent perfect absorption Laser points Double-wavelength PT-symmetry Thue-Morse sequence Photonic crystal |
| title | Double-wavelength coherent perfect absorption laser in Thue-Morse PT-symmetric photonic crystals |
| title_full | Double-wavelength coherent perfect absorption laser in Thue-Morse PT-symmetric photonic crystals |
| title_fullStr | Double-wavelength coherent perfect absorption laser in Thue-Morse PT-symmetric photonic crystals |
| title_full_unstemmed | Double-wavelength coherent perfect absorption laser in Thue-Morse PT-symmetric photonic crystals |
| title_short | Double-wavelength coherent perfect absorption laser in Thue-Morse PT-symmetric photonic crystals |
| title_sort | double wavelength coherent perfect absorption laser in thue morse pt symmetric photonic crystals |
| topic | Coherent perfect absorption Laser points Double-wavelength PT-symmetry Thue-Morse sequence Photonic crystal |
| url | http://www.sciencedirect.com/science/article/pii/S2211379722004193 |
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