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dc.contributor.author | Yoshida, Masahiro | en |
dc.contributor.author | Katsuno, Shumpei | en |
dc.contributor.author | Inoue, Takuya | en |
dc.contributor.author | Gelleta, John | en |
dc.contributor.author | Izumi, Koki | en |
dc.contributor.author | De Zoysa, Menaka | en |
dc.contributor.author | Ishizaki, Kenji | en |
dc.contributor.author | Noda, Susumu | en |
dc.contributor.alternative | 吉田, 昌宏 | ja |
dc.contributor.alternative | 勝野, 峻平 | ja |
dc.contributor.alternative | 井上, 卓也 | ja |
dc.contributor.alternative | 和泉, 孝紀 | ja |
dc.contributor.alternative | 石﨑, 賢司 | ja |
dc.contributor.alternative | 野田, 進 | ja |
dc.date.accessioned | 2023-06-22T04:24:45Z | - |
dc.date.available | 2023-06-22T04:24:45Z | - |
dc.date.issued | 2023-06-22 | - |
dc.identifier.uri | http://hdl.handle.net/2433/283423 | - |
dc.description | フォトニック結晶レーザーの高輝度単一モード連続動作の実現 --スマート製造を始めとする各種分野のゲームチェンジに向けて--. 京都大学プレスリリース. 2023-06-15. | ja |
dc.description.abstract | Realizing large-scale single-mode, high-power, high-beam-quality semiconductor lasers, which rival (or even replace) bulky gas and solid-state lasers, is one of the ultimate goals of photonics and laser physics. Conventional high-power semiconductor lasers, however, inevitably suffer from poor beam quality owing to the onset of many-mode oscillation, and, moreover, the oscillation is destabilized by disruptive thermal effects under continuous-wave (CW) operation. Here, we surmount these challenges by developing large-scale photonic-crystal surface-emitting lasers with controlled Hermitian and non-Hermitian couplings inside the photonic crystal and a pre-installed spatial distribution of the lattice constant, which maintains these couplings even under CW conditions. A CW output power exceeding 50 W with purely single-mode oscillation and an exceptionally narrow beam divergence of 0.05° has been achieved for photonic-crystal surface-emitting lasers with a large resonant diameter of 3 mm, corresponding to over 10, 000 wavelengths in the material. The brightness, a figure of merit encapsulating both output power and beam quality, reaches 1 GW cm⁻² sr⁻¹, which rivals those of existing bulky lasers. Our work is an important milestone toward the advent of single-mode 1-kW-class semiconductor lasers, which are expected to replace conventional, bulkier lasers in the near future. | en |
dc.language.iso | eng | - |
dc.publisher | Springer Nature | en |
dc.rights | © The Author(s) 2023 | en |
dc.rights | This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. | en |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | - |
dc.subject | Photonic crystals | en |
dc.subject | Photonic devices | en |
dc.subject | Semiconductor lasers | en |
dc.title | High-brightness scalable continuous-wave single-mode photonic-crystal laser | en |
dc.type | journal article | - |
dc.type.niitype | Journal Article | - |
dc.identifier.jtitle | Nature | en |
dc.identifier.volume | 618 | - |
dc.identifier.issue | 7966 | - |
dc.identifier.spage | 727 | - |
dc.identifier.epage | 732 | - |
dc.relation.doi | 10.1038/s41586-023-06059-8 | - |
dc.textversion | publisher | - |
dc.address | Department of Electronic Science and Engineering, Kyoto University | en |
dc.address | Department of Electronic Science and Engineering, Kyoto University | en |
dc.address | Photonics and Electronics Science and Engineering Center, Kyoto University | en |
dc.address | Department of Electronic Science and Engineering, Kyoto University | en |
dc.address | Department of Electronic Science and Engineering, Kyoto University | en |
dc.address | Photonics and Electronics Science and Engineering Center, Kyoto University | en |
dc.address | Photonics and Electronics Science and Engineering Center, Kyoto University | en |
dc.address | Department of Electronic Science and Engineering, Kyoto University; Photonics and Electronics Science and Engineering Center, Kyoto University | en |
dc.identifier.pmid | 37316656 | - |
dc.relation.url | https://www.t.kyoto-u.ac.jp/ja/research/topics/20230615 | - |
dcterms.accessRights | open access | - |
datacite.awardNumber | 22H04915 | - |
datacite.awardNumber.uri | https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22H04915/ | - |
dc.identifier.pissn | 0028-0836 | - |
dc.identifier.eissn | 1476-4687 | - |
jpcoar.funderName | 日本学術振興会 | ja |
jpcoar.awardTitle | 究極の光デバイス実現に向けた非エルミート・ナノフォトニクスの開拓 | ja |
出現コレクション: | 学術雑誌掲載論文等 |
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