Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 송석호 | - |
dc.date.accessioned | 2019-11-22T07:24:10Z | - |
dc.date.available | 2019-11-22T07:24:10Z | - |
dc.date.issued | 2017-04 | - |
dc.identifier.citation | SCIENTIFIC REPORTS, v. 7, Article no. 46508 | en_US |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://www.nature.com/articles/srep46508 | - |
dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/113654 | - |
dc.description.abstract | We propose a free-space electro-optic transmission modulator based on multiple p-n-junction semiconductor subwavelength gratings. The proposed device operates with a high-Q guided-mode resonance undergoing electro-optic resonance shift due to direct electrical control. Using rigorous electrical and optical modeling methods, we theoretically demonstrate a modulation depth of 84%, on-state efficiency 85%, and on-off extinction ratio of 19 dB at 1,550 nm wavelength under electrical control signals within a favorably low bias voltage range from -4 V to +1 V. This functionality operates in the transmission mode and sustainable in the high-speed operation regime up to a 10-GHz-scale modulation bandwidth in principle. The theoretical performance prediction is remarkably advantageous over plasmonic tunable metasurfaces in the power-efficiency and absolute modulation-depth aspects. Therefore, further experimental study is of great interest for creating practical-level metasurface components in various application areas. | en_US |
dc.description.sponsorship | This research was supported in part by the Basic Science Research Program (NRF-2015R1A2A2A01007553) and by the Global Frontier Program through the National Research Foundation (NRF) of Korea funded by the Ministry of Science, ICT & Future Planning (NRF-2014M3A6B3063708). We thank Hyun Jae Lee from University of Seoul for helpful discussions on electrical properties of semiconductor thin films. | en_US |
dc.language.iso | en_US | en_US |
dc.publisher | NATURE PUBLISHING GROUP | en_US |
dc.subject | WAVE-GUIDE STRUCTURES | en_US |
dc.subject | SILICON | en_US |
dc.subject | FILTERS | en_US |
dc.subject | DESIGN | en_US |
dc.title | Multiple p-n junction subwavelength gratings for transmission-mode electro-optic modulators | en_US |
dc.type | Article | en_US |
dc.relation.no | 46508 | - |
dc.relation.volume | 7 | - |
dc.identifier.doi | 10.1038/srep46508 | - |
dc.relation.page | 1-8 | - |
dc.relation.journal | SCIENTIFIC REPORTS | - |
dc.contributor.googleauthor | Lee, Ki Young | - |
dc.contributor.googleauthor | Yoon, Jae Woong | - |
dc.contributor.googleauthor | Song, Seok Ho | - |
dc.contributor.googleauthor | Magnusson, Robert | - |
dc.relation.code | 2017003408 | - |
dc.sector.campus | S | - |
dc.sector.daehak | COLLEGE OF NATURAL SCIENCES[S] | - |
dc.sector.department | DEPARTMENT OF PHYSICS | - |
dc.identifier.pid | shsong | - |
dc.identifier.researcherID | P-8921-2017 | - |
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