DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Dohyun | ko |
dc.contributor.author | Park, Nam Hun | ko |
dc.contributor.author | Lee, Hyunju | ko |
dc.contributor.author | Lee, Jaegoan | ko |
dc.contributor.author | Yeom, Dong-Il | ko |
dc.contributor.author | Kim, Jungwon | ko |
dc.date.accessioned | 2019-07-11T07:10:03Z | - |
dc.date.available | 2019-07-11T07:10:03Z | - |
dc.date.created | 2019-07-10 | - |
dc.date.created | 2019-07-10 | - |
dc.date.created | 2019-07-10 | - |
dc.date.issued | 2019-07 | - |
dc.identifier.citation | PHOTONICS RESEARCH, v.7, no.7, pp.742 - 747 | - |
dc.identifier.issn | 2327-9125 | - |
dc.identifier.uri | http://hdl.handle.net/10203/263251 | - |
dc.description.abstract | We investigate optical and electrical behaviors of a graphene saturable absorber (SA) and mode-locking performance of a graphene-SA-based mode-locked Er fiber laser in gamma-ray radiation. When irradiated up to 4.8 kGy at similar to 100 Gy/hr dose rate, the overall nonlinear transmittance in transverse electric mode was increased, while maintaining modulation depth to > 10%. The corresponding polarization-dependent loss was reduced at a 1.2-dB/kGy rate. In the electrical properties, the charge carrier mobility was reduced, and the Dirac voltage shift was increased to positive under gamma-ray radiation. The radiation-induced optical and electrical changes turned out to be almost recovered after a few days. In addition, we confirmed that the graphene-SA-based laser showed stable CW mode-locking operation while the inserted graphene SA was irradiated for 2-kGy at a 45-Gy/hr dose rate, which corresponds to > 40 years of operation in low Earth orbit satellites. To the best of our knowledge, this is the first evaluation of graphene SAs and graphene-SA-based mode-locked lasers in gamma-ray radiation, and the measured results confirm the high potential of graphene SAs and graphene-SA-based lasers in various outer-space environments as well as other radiation environments, including particle accelerators and radiation-based medical instruments. | - |
dc.language | English | - |
dc.publisher | OPTICAL SOC AMER | - |
dc.title | Graphene-based saturable absorber and mode-locked laser behaviors under gamma-ray radiation | - |
dc.type | Article | - |
dc.identifier.wosid | 000473345500009 | - |
dc.identifier.scopusid | 2-s2.0-85070741466 | - |
dc.type.rims | ART | - |
dc.citation.volume | 7 | - |
dc.citation.issue | 7 | - |
dc.citation.beginningpage | 742 | - |
dc.citation.endingpage | 747 | - |
dc.citation.publicationname | PHOTONICS RESEARCH | - |
dc.identifier.doi | 10.1364/prj.7.000742 | - |
dc.contributor.localauthor | Kim, Jungwon | - |
dc.contributor.nonIdAuthor | Park, Nam Hun | - |
dc.contributor.nonIdAuthor | Lee, Hyunju | - |
dc.contributor.nonIdAuthor | Lee, Jaegoan | - |
dc.contributor.nonIdAuthor | Yeom, Dong-Il | - |
dc.description.isOpenAccess | Y | - |
dc.type.journalArticle | Article | - |
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