Unveiling the nature of cathodoluminescence from photon statistics
Abstract Cathodoluminescence (CL), the emission of light induced by accelerated free electrons, has been extensively utilized in various applications, such as displays, streak cameras, and high-spatial-resolution analysis of optical materials, surpassing the diffraction limit of light. Despite its l...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2025-02-01
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| Series: | Communications Physics |
| Online Access: | https://doi.org/10.1038/s42005-025-01978-6 |
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| author | Sotatsu Yanagimoto Naoki Yamamoto Tatsuro Yuge Takumi Sannomiya Keiichirou Akiba |
| author_facet | Sotatsu Yanagimoto Naoki Yamamoto Tatsuro Yuge Takumi Sannomiya Keiichirou Akiba |
| author_sort | Sotatsu Yanagimoto |
| collection | DOAJ |
| description | Abstract Cathodoluminescence (CL), the emission of light induced by accelerated free electrons, has been extensively utilized in various applications, such as displays, streak cameras, and high-spatial-resolution analysis of optical materials, surpassing the diffraction limit of light. Despite its long history, the photon statistics of CL have only recently been examined, revealing unexpectedly large bunching of photons. Here we find that this peculiar photon bunching contains information of intervening excitation processes before the photon emission, which can be extracted from the photon statistics within each excitation event by a single free electron. Using this approach, we experimentally unveiled the statistical differences of coherent CL involving a single electromagnetic interaction process and incoherent CL involving multiple excitation processes. The developed formulation is universally applicable for particle generation processes in general to investigate the nature of cascade reactions. |
| format | Article |
| id | doaj-art-fa7e7ddf1c7b4faa919b13702955f0a5 |
| institution | Kabale University |
| issn | 2399-3650 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Physics |
| spelling | doaj-art-fa7e7ddf1c7b4faa919b13702955f0a52025-02-09T12:40:35ZengNature PortfolioCommunications Physics2399-36502025-02-01811710.1038/s42005-025-01978-6Unveiling the nature of cathodoluminescence from photon statisticsSotatsu Yanagimoto0Naoki Yamamoto1Tatsuro Yuge2Takumi Sannomiya3Keiichirou Akiba4Department of Materials Science and Engineering, School of Materials and Chemical Technology, Institute of Science TokyoDepartment of Materials Science and Engineering, School of Materials and Chemical Technology, Institute of Science TokyoDepartment of Physics, Shizuoka UniversityDepartment of Materials Science and Engineering, School of Materials and Chemical Technology, Institute of Science TokyoDepartment of Materials Science and Engineering, School of Materials and Chemical Technology, Institute of Science TokyoAbstract Cathodoluminescence (CL), the emission of light induced by accelerated free electrons, has been extensively utilized in various applications, such as displays, streak cameras, and high-spatial-resolution analysis of optical materials, surpassing the diffraction limit of light. Despite its long history, the photon statistics of CL have only recently been examined, revealing unexpectedly large bunching of photons. Here we find that this peculiar photon bunching contains information of intervening excitation processes before the photon emission, which can be extracted from the photon statistics within each excitation event by a single free electron. Using this approach, we experimentally unveiled the statistical differences of coherent CL involving a single electromagnetic interaction process and incoherent CL involving multiple excitation processes. The developed formulation is universally applicable for particle generation processes in general to investigate the nature of cascade reactions.https://doi.org/10.1038/s42005-025-01978-6 |
| spellingShingle | Sotatsu Yanagimoto Naoki Yamamoto Tatsuro Yuge Takumi Sannomiya Keiichirou Akiba Unveiling the nature of cathodoluminescence from photon statistics Communications Physics |
| title | Unveiling the nature of cathodoluminescence from photon statistics |
| title_full | Unveiling the nature of cathodoluminescence from photon statistics |
| title_fullStr | Unveiling the nature of cathodoluminescence from photon statistics |
| title_full_unstemmed | Unveiling the nature of cathodoluminescence from photon statistics |
| title_short | Unveiling the nature of cathodoluminescence from photon statistics |
| title_sort | unveiling the nature of cathodoluminescence from photon statistics |
| url | https://doi.org/10.1038/s42005-025-01978-6 |
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