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DC Field | Value | Language |
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dc.citation.number | 1 | - |
dc.citation.startPage | 013116 | - |
dc.citation.title | PHYSICS OF PLASMAS | - |
dc.citation.volume | 25 | - |
dc.contributor.author | Lee, Ingeun | - |
dc.contributor.author | Sawant, Ashwini | - |
dc.contributor.author | Choe, Munseok | - |
dc.contributor.author | Lee, Dong Joon | - |
dc.contributor.author | Choi, EunMi | - |
dc.date.accessioned | 2023-12-21T21:14:38Z | - |
dc.date.available | 2023-12-21T21:14:38Z | - |
dc.date.created | 2018-01-26 | - |
dc.date.issued | 2018-01 | - |
dc.description.abstract | The precise field pattern measurement and analysis of a typical whispering gallery mode excited in a gyrotron are important to understand the interaction physics of the gyrotron. We precisely analyzed the characteristic of a whispering gallery mode, rotating TE6,2 mode, by a photonic-assisted W-band (75-110 GHz) electro-optic imaging measurement system. The whispering gallery mode in the W-band region diverges fast in free space as it propagates from the radiation port. Therefore, scanning the field patterns of a device-under-test should be performed as close as possible to identify the device's characteristics. We successfully accomplished visualizing highly accurate field patterns of a rotating and mixed whispering gallery mode based on the measured electric field magnitude and phase by using dual optical fiber-scale electro-optic (EO) probes. We observed the distorted fields when the typical open-ended waveguide and a general EO probe were used in the extremely near-field zone, whereas a very precise field was measured in a minimally invasive way by the proposed EO probe. The measured mode patterns were quantitatively analyzed by using a cross correlation function and a mode purity equation. This work promises a way to provide accurate electric field information in the generation of the whispering gallery mode in the millimeter and submillimeter regime. Published by AIP Publishing. | - |
dc.identifier.bibliographicCitation | PHYSICS OF PLASMAS, v.25, no.1, pp.013116 | - |
dc.identifier.doi | 10.1063/1.5017558 | - |
dc.identifier.issn | 1070-664X | - |
dc.identifier.scopusid | 2-s2.0-85041006328 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/23277 | - |
dc.identifier.url | http://aip.scitation.org/doi/full/10.1063/1.5017558 | - |
dc.identifier.wosid | 000424021700113 | - |
dc.language | 영어 | - |
dc.publisher | AMER INST PHYSICS | - |
dc.title | Accurate identification of whispering gallery mode patterns of gyrotron with stabilized electro-optic imaging system | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Physics, Fluids & Plasmas | - |
dc.relation.journalResearchArea | Physics | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | NEAR-FIELD PATTERN | - |
dc.subject.keywordPlus | WAVE GYROTRON | - |
dc.subject.keywordPlus | HIGH-POWER | - |
dc.subject.keywordPlus | OPERATION | - |
dc.subject.keywordPlus | CONVERTER | - |
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