Temperature Dependence of Optical Bistability in Superconductor–Semiconductor Photonic Crystals Embedded with Graphene
We theoretically investigate the optical bistability in superconductor–semiconductor photonic crystals composed of graphene. The photonic crystals are symmetric to the center and arranged alternately by the superconductor (HgBa<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub&...
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| Format: | Article |
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MDPI AG
2023-03-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/13/3/545 |
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| author | Libing Qian Yonghong Hu Zhiyuan Chen Dong Zhao Junjie Dong Xiaoling Chen |
| author_facet | Libing Qian Yonghong Hu Zhiyuan Chen Dong Zhao Junjie Dong Xiaoling Chen |
| author_sort | Libing Qian |
| collection | DOAJ |
| description | We theoretically investigate the optical bistability in superconductor–semiconductor photonic crystals composed of graphene. The photonic crystals are symmetric to the center and arranged alternately by the superconductor (HgBa<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>8+δ</sub>) and semiconductor (GaAs) layers. The system supports a defect mode, and graphene is located at the layer interface where the local electric field is the strongest. Consequently, the optical nonlinearity of graphene has been greatly enhanced, and low-threshold optical bistability can be achieved with an incident wavelength red-detuning to the defect mode. The upper and lower thresholds of bistability increase with the increase in the value of low environmental temperature, while the interval between the upper and lower thresholds decreases. This research has a potential application in temperature-controlled optical switches and temperature-controlled optical memory. |
| first_indexed | 2024-03-11T06:42:57Z |
| format | Article |
| id | doaj.art-9da73a954c604bb7afc5ba57489dc373 |
| institution | Directory Open Access Journal |
| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-11T06:42:57Z |
| publishDate | 2023-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Crystals |
| spelling | doaj.art-9da73a954c604bb7afc5ba57489dc3732023-11-17T10:30:17ZengMDPI AGCrystals2073-43522023-03-0113354510.3390/cryst13030545Temperature Dependence of Optical Bistability in Superconductor–Semiconductor Photonic Crystals Embedded with GrapheneLibing Qian0Yonghong Hu1Zhiyuan Chen2Dong Zhao3Junjie Dong4Xiaoling Chen5Hubei Key Laboratory of Radiation Chemistry and Functional Materials, Hubei University of Science and Technology, Xianning 437100, ChinaHubei Key Laboratory of Radiation Chemistry and Functional Materials, Hubei University of Science and Technology, Xianning 437100, ChinaHubei Key Laboratory of Radiation Chemistry and Functional Materials, Hubei University of Science and Technology, Xianning 437100, ChinaLaboratory of Optoelectronic Information and Intelligent Control, Hubei University of Science and Technology, Xianning 437100, ChinaLaboratory of Optoelectronic Information and Intelligent Control, Hubei University of Science and Technology, Xianning 437100, ChinaLaboratory of Optoelectronic Information and Intelligent Control, Hubei University of Science and Technology, Xianning 437100, ChinaWe theoretically investigate the optical bistability in superconductor–semiconductor photonic crystals composed of graphene. The photonic crystals are symmetric to the center and arranged alternately by the superconductor (HgBa<sub>2</sub>Ca<sub>2</sub>Cu<sub>3</sub>O<sub>8+δ</sub>) and semiconductor (GaAs) layers. The system supports a defect mode, and graphene is located at the layer interface where the local electric field is the strongest. Consequently, the optical nonlinearity of graphene has been greatly enhanced, and low-threshold optical bistability can be achieved with an incident wavelength red-detuning to the defect mode. The upper and lower thresholds of bistability increase with the increase in the value of low environmental temperature, while the interval between the upper and lower thresholds decreases. This research has a potential application in temperature-controlled optical switches and temperature-controlled optical memory.https://www.mdpi.com/2073-4352/13/3/545optical bistabilitysuperconductortemperature dependencegraphenephotonic crystal |
| spellingShingle | Libing Qian Yonghong Hu Zhiyuan Chen Dong Zhao Junjie Dong Xiaoling Chen Temperature Dependence of Optical Bistability in Superconductor–Semiconductor Photonic Crystals Embedded with Graphene Crystals optical bistability superconductor temperature dependence graphene photonic crystal |
| title | Temperature Dependence of Optical Bistability in Superconductor–Semiconductor Photonic Crystals Embedded with Graphene |
| title_full | Temperature Dependence of Optical Bistability in Superconductor–Semiconductor Photonic Crystals Embedded with Graphene |
| title_fullStr | Temperature Dependence of Optical Bistability in Superconductor–Semiconductor Photonic Crystals Embedded with Graphene |
| title_full_unstemmed | Temperature Dependence of Optical Bistability in Superconductor–Semiconductor Photonic Crystals Embedded with Graphene |
| title_short | Temperature Dependence of Optical Bistability in Superconductor–Semiconductor Photonic Crystals Embedded with Graphene |
| title_sort | temperature dependence of optical bistability in superconductor semiconductor photonic crystals embedded with graphene |
| topic | optical bistability superconductor temperature dependence graphene photonic crystal |
| url | https://www.mdpi.com/2073-4352/13/3/545 |
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