Generation of isolated attosecond pulses using a plasmonic funnel-waveguide
We theoretically investigated the possibility of generating attosecond pulses by means of plasmonic field enhancement induced in a nano-structured metallic funnel-waveguide. This study was motivated by our recent experimental demonstration of ultrashort extreme-ultraviolet (EUV) pulses using the sam...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2012-01-01
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| Series: | New Journal of Physics |
| Online Access: | https://doi.org/10.1088/1367-2630/14/10/103038 |
| _version_ | 1797751628306055168 |
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| author | Joonhee Choi Seungchul Kim In-Yong Park Dong-Hyub Lee Seunghwoi Han Seung-Woo Kim |
| author_facet | Joonhee Choi Seungchul Kim In-Yong Park Dong-Hyub Lee Seunghwoi Han Seung-Woo Kim |
| author_sort | Joonhee Choi |
| collection | DOAJ |
| description | We theoretically investigated the possibility of generating attosecond pulses by means of plasmonic field enhancement induced in a nano-structured metallic funnel-waveguide. This study was motivated by our recent experimental demonstration of ultrashort extreme-ultraviolet (EUV) pulses using the same type of three-dimensional waveguides. Here, with emphasis on generation of isolated attosecond pulses, the finite-domain time-difference method was used to analyze the funnel-waveguide with respect to the geometry-dependent plasmonic features such as the field enhancement factor, enhanced plasmonic field profile and hot-spot location. Then an extended semi-classical model of high-order harmonic generation was adopted to predict the EUV spectra generated from the funnel-waveguide in consideration of the spatial inhomogeneity of the plasmonic field within the hot-spot volume. Our simulation finally proved that isolated attosecond pulses can be produced at fast repetition rates directly from a few-cycle femtosecond laser or by synthesizing a two-color laser consisting of two multi-cycle pulses of cross-polarized configuration. |
| first_indexed | 2024-03-12T16:51:18Z |
| format | Article |
| id | doaj.art-165312cfb2b8425bad474641aeec091d |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:51:18Z |
| publishDate | 2012-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-165312cfb2b8425bad474641aeec091d2023-08-08T11:07:55ZengIOP PublishingNew Journal of Physics1367-26302012-01-01141010303810.1088/1367-2630/14/10/103038Generation of isolated attosecond pulses using a plasmonic funnel-waveguideJoonhee Choi0Seungchul Kim1In-Yong Park2Dong-Hyub Lee3Seunghwoi Han4Seung-Woo Kim5Ultrafast Optics for Ultraprecision Group, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 305-701, KoreaUltrafast Optics for Ultraprecision Group, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 305-701, Korea; Max Planck Center for Attosecond Science (MPC-AS) , San 31 Hyoja-Dong, Namku, Pohang, Kyungbuk 790-784, KoreaUltrafast Optics for Ultraprecision Group, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 305-701, Korea; Center for Nano-Imaging Technology, Division of Industrial Metrology, Korea Research Institute of Standards and Science (KRISS) , Daejeon 305-340, KoreaUltrafast Optics for Ultraprecision Group, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 305-701, KoreaUltrafast Optics for Ultraprecision Group, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 305-701, KoreaUltrafast Optics for Ultraprecision Group, Korea Advanced Institute of Science and Technology (KAIST) , Daejeon 305-701, KoreaWe theoretically investigated the possibility of generating attosecond pulses by means of plasmonic field enhancement induced in a nano-structured metallic funnel-waveguide. This study was motivated by our recent experimental demonstration of ultrashort extreme-ultraviolet (EUV) pulses using the same type of three-dimensional waveguides. Here, with emphasis on generation of isolated attosecond pulses, the finite-domain time-difference method was used to analyze the funnel-waveguide with respect to the geometry-dependent plasmonic features such as the field enhancement factor, enhanced plasmonic field profile and hot-spot location. Then an extended semi-classical model of high-order harmonic generation was adopted to predict the EUV spectra generated from the funnel-waveguide in consideration of the spatial inhomogeneity of the plasmonic field within the hot-spot volume. Our simulation finally proved that isolated attosecond pulses can be produced at fast repetition rates directly from a few-cycle femtosecond laser or by synthesizing a two-color laser consisting of two multi-cycle pulses of cross-polarized configuration.https://doi.org/10.1088/1367-2630/14/10/103038 |
| spellingShingle | Joonhee Choi Seungchul Kim In-Yong Park Dong-Hyub Lee Seunghwoi Han Seung-Woo Kim Generation of isolated attosecond pulses using a plasmonic funnel-waveguide New Journal of Physics |
| title | Generation of isolated attosecond pulses using a plasmonic funnel-waveguide |
| title_full | Generation of isolated attosecond pulses using a plasmonic funnel-waveguide |
| title_fullStr | Generation of isolated attosecond pulses using a plasmonic funnel-waveguide |
| title_full_unstemmed | Generation of isolated attosecond pulses using a plasmonic funnel-waveguide |
| title_short | Generation of isolated attosecond pulses using a plasmonic funnel-waveguide |
| title_sort | generation of isolated attosecond pulses using a plasmonic funnel waveguide |
| url | https://doi.org/10.1088/1367-2630/14/10/103038 |
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