Computational upper-limit of directional light emission in nano-LED via inverse design
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chung, Haejun | - |
dc.date.accessioned | 2023-07-24T09:20:11Z | - |
dc.date.available | 2023-07-24T09:20:11Z | - |
dc.date.created | 2023-07-21 | - |
dc.date.issued | 2022-03 | - |
dc.identifier.issn | 1094-4087 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/187287 | - |
dc.description.abstract | We demonstrate directional light emission in nano-LEDs using inverse design. Standard light-extraction strategies in LEDs have been limited to surface roughening or suppressing guided modes via LED structure modifications, which are insufficient for simultaneously achieving high-light extraction efficiency and directional emission. In this work, we use inverse design to discover high-efficiency directional emitting nano-LEDs. We first investigate the computational upper bounds of directional emission using free-form grayscale material, where material permittivity indicates an intermediate state between air and SiO2. For a narrow emission angle (<+/- 30 degrees), the optimized grayscale design offers 4.99 times enhancement from the planar LED surface. Then, we apply fabrication constraints to our inverse design for discovering a single material (SiO2) based design. The optimized SiO2 surface design shows 4.71 times light extraction (<+/- 30 degrees) improvement compared with the planar configuration. This is a first theoretical demonstration of high light-extraction efficiency and directional emitting nano-LED designs. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | OPTICAL SOC AMER | - |
dc.title | Computational upper-limit of directional light emission in nano-LED via inverse design | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Chung, Haejun | - |
dc.identifier.doi | 10.1364/OE.451008 | - |
dc.identifier.scopusid | 2-s2.0-85125836421 | - |
dc.identifier.wosid | 000768611900065 | - |
dc.identifier.bibliographicCitation | OPTICS EXPRESS, v.30, no.6, pp.9008 - 9020 | - |
dc.relation.isPartOf | OPTICS EXPRESS | - |
dc.citation.title | OPTICS EXPRESS | - |
dc.citation.volume | 30 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 9008 | - |
dc.citation.endPage | 9020 | - |
dc.type.rims | ART | - |
dc.type.docType | 정기학술지(Article(Perspective Article포함)) | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Optics | - |
dc.relation.journalWebOfScienceCategory | Optics | - |
dc.subject.keywordPlus | EXTRACTION EFFICIENCY | - |
dc.subject.keywordPlus | EMITTING-DIODES | - |
dc.subject.keywordPlus | OPTIMIZATION | - |
dc.subject.keywordPlus | ENHANCEMENT | - |
dc.subject.keywordPlus | COMPACT | - |
dc.identifier.url | https://opg.optica.org/oe/fulltext.cfm?uri=oe-30-6-9008&id=470074 | - |
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