Polarization bistability of vertical-cavity surface-emitting lasers under Larmor precession of electron spins
Polarization bistability of vertical-cavity surface-emitting lasers (VCSELs) is the situation in which two orthogonal linear polarization states can selectively and stably exist for a single operation condition (e.g., injected current and temperature) and provide switching between the two orthogonal...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-01-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0234539 |
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| author | Nobuhide Yokota Kazuhiro Ikeda Satoshi Iba Takeo Katayama Hiroshi Yasaka |
| author_facet | Nobuhide Yokota Kazuhiro Ikeda Satoshi Iba Takeo Katayama Hiroshi Yasaka |
| author_sort | Nobuhide Yokota |
| collection | DOAJ |
| description | Polarization bistability of vertical-cavity surface-emitting lasers (VCSELs) is the situation in which two orthogonal linear polarization states can selectively and stably exist for a single operation condition (e.g., injected current and temperature) and provide switching between the two orthogonal linear polarizations and complex polarization dynamics. This is attractive for photonic computing in the sense that the complexity of a nonlinear node can be enhanced. However, polarization bistability is considered inherent to the material properties and cavity structure of VCSELs, which makes it difficult to optimize the complex dynamics to achieve the best computational performance. We show that the polarization bistability of VCSELs can be controlled by manipulating electron spins in the active region. We achieve such manipulation by using the transverse external magnetic field, i.e., Larmor precession of electron spins. We reveal that the control of the Larmor-precession frequency induces a polarization switching and its hysteresis behavior of VCSELs without changing current, heat, and external light, demonstrating that the manipulation of electron spins can control polarization bistability of VCSELs. This finding is a novel phenomenon in spin-controlled VCSELs, which will contribute to the development of interdisciplinary research fields in computing between photonics and spintronics. |
| format | Article |
| id | doaj-art-c3ad44608d4f4f33ae8cd201ef8b8154 |
| institution | Kabale University |
| issn | 2378-0967 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj-art-c3ad44608d4f4f33ae8cd201ef8b81542025-02-03T16:36:22ZengAIP Publishing LLCAPL Photonics2378-09672025-01-01101016110016110-1210.1063/5.0234539Polarization bistability of vertical-cavity surface-emitting lasers under Larmor precession of electron spinsNobuhide Yokota0Kazuhiro Ikeda1Satoshi Iba2Takeo Katayama3Hiroshi Yasaka4Research Institute of Electrical Communication, Tohoku University, Sendai 980-8577, JapanPlatform Photonics Research Center, National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, JapanResearch Center for Emerging Computing Technologies, National Institute of Advanced Industrial Science and Technology, Tsukuba 305-8568, JapanFaculty of Science and Technology, Oita University, Oita 870-1192, JapanResearch Institute of Electrical Communication, Tohoku University, Sendai 980-8577, JapanPolarization bistability of vertical-cavity surface-emitting lasers (VCSELs) is the situation in which two orthogonal linear polarization states can selectively and stably exist for a single operation condition (e.g., injected current and temperature) and provide switching between the two orthogonal linear polarizations and complex polarization dynamics. This is attractive for photonic computing in the sense that the complexity of a nonlinear node can be enhanced. However, polarization bistability is considered inherent to the material properties and cavity structure of VCSELs, which makes it difficult to optimize the complex dynamics to achieve the best computational performance. We show that the polarization bistability of VCSELs can be controlled by manipulating electron spins in the active region. We achieve such manipulation by using the transverse external magnetic field, i.e., Larmor precession of electron spins. We reveal that the control of the Larmor-precession frequency induces a polarization switching and its hysteresis behavior of VCSELs without changing current, heat, and external light, demonstrating that the manipulation of electron spins can control polarization bistability of VCSELs. This finding is a novel phenomenon in spin-controlled VCSELs, which will contribute to the development of interdisciplinary research fields in computing between photonics and spintronics.http://dx.doi.org/10.1063/5.0234539 |
| spellingShingle | Nobuhide Yokota Kazuhiro Ikeda Satoshi Iba Takeo Katayama Hiroshi Yasaka Polarization bistability of vertical-cavity surface-emitting lasers under Larmor precession of electron spins APL Photonics |
| title | Polarization bistability of vertical-cavity surface-emitting lasers under Larmor precession of electron spins |
| title_full | Polarization bistability of vertical-cavity surface-emitting lasers under Larmor precession of electron spins |
| title_fullStr | Polarization bistability of vertical-cavity surface-emitting lasers under Larmor precession of electron spins |
| title_full_unstemmed | Polarization bistability of vertical-cavity surface-emitting lasers under Larmor precession of electron spins |
| title_short | Polarization bistability of vertical-cavity surface-emitting lasers under Larmor precession of electron spins |
| title_sort | polarization bistability of vertical cavity surface emitting lasers under larmor precession of electron spins |
| url | http://dx.doi.org/10.1063/5.0234539 |
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