Generation and control of ultrashort-wavelength two-dimensional surface acoustic waves at nanoscale interfaces
In this work, we generate and probe the shortest wavelength surface acoustic waves to date, at 45 nm, by diffracting coherent extreme ultraviolet beams from a suboptical phononic crystal. The short acoustic wavelengths correspond to penetration depths of approximately 10 nm. We also measure the acou...
| Главные авторы: | , , , , , , , , , , , |
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| Другие авторы: | |
| Формат: | Статья |
| Язык: | en_US |
| Опубликовано: |
American Physical Society
2012
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| Online-ссылка: | http://hdl.handle.net/1721.1/71687 https://orcid.org/0000-0001-7804-5418 |
| _version_ | 1826216358093783040 |
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| author | Li, Qing Hoogeboom-Pot, Kathleen Nardi, Damiano Murname, Margaret M. Kapteyn, Henry C. Siemens, Mark E. Anderson, Erik H. Hellwig, Olav Dobisz, Elizabeth Gurney, Bruce Yang, Ronggui Nelson, Keith Adam |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Li, Qing Hoogeboom-Pot, Kathleen Nardi, Damiano Murname, Margaret M. Kapteyn, Henry C. Siemens, Mark E. Anderson, Erik H. Hellwig, Olav Dobisz, Elizabeth Gurney, Bruce Yang, Ronggui Nelson, Keith Adam |
| author_sort | Li, Qing |
| collection | MIT |
| description | In this work, we generate and probe the shortest wavelength surface acoustic waves to date, at 45 nm, by diffracting coherent extreme ultraviolet beams from a suboptical phononic crystal. The short acoustic wavelengths correspond to penetration depths of approximately 10 nm. We also measure the acoustic dispersion in two-dimensional nanostructured phononic crystals down to this wavelength for the first time, showing that it is strongly influenced by the ultrashort acoustic penetration depth, and that advanced finite-element analysis is required to model the dispersion. Finally, we use pulse sequences to control surface acoustic wave generation in one-dimensional nanostructured gratings, to preferentially enhance higher-order surface waves, while suppressing lower frequency waves. This allows us to reduce the generated surface acoustic wavelength by a factor of two for a defined nanostructure period. |
| first_indexed | 2024-09-23T16:46:22Z |
| format | Article |
| id | mit-1721.1/71687 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:46:22Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/716872022-10-03T08:11:06Z Generation and control of ultrashort-wavelength two-dimensional surface acoustic waves at nanoscale interfaces Li, Qing Hoogeboom-Pot, Kathleen Nardi, Damiano Murname, Margaret M. Kapteyn, Henry C. Siemens, Mark E. Anderson, Erik H. Hellwig, Olav Dobisz, Elizabeth Gurney, Bruce Yang, Ronggui Nelson, Keith Adam Massachusetts Institute of Technology. Department of Chemistry Nelson, Keith Adam Nelson, Keith Adam In this work, we generate and probe the shortest wavelength surface acoustic waves to date, at 45 nm, by diffracting coherent extreme ultraviolet beams from a suboptical phononic crystal. The short acoustic wavelengths correspond to penetration depths of approximately 10 nm. We also measure the acoustic dispersion in two-dimensional nanostructured phononic crystals down to this wavelength for the first time, showing that it is strongly influenced by the ultrashort acoustic penetration depth, and that advanced finite-element analysis is required to model the dispersion. Finally, we use pulse sequences to control surface acoustic wave generation in one-dimensional nanostructured gratings, to preferentially enhance higher-order surface waves, while suppressing lower frequency waves. This allows us to reduce the generated surface acoustic wavelength by a factor of two for a defined nanostructure period. 2012-07-18T17:25:32Z 2012-07-18T17:25:32Z 2012-05 2012-02 Article http://purl.org/eprint/type/JournalArticle 1098-0121 1550-235X http://hdl.handle.net/1721.1/71687 Li, Qing et al. “Generation and Control of Ultrashort-wavelength Two-dimensional Surface Acoustic Waves at Nanoscale Interfaces.” Physical Review B 85.19 (2012). ©2012 American Physical Society https://orcid.org/0000-0001-7804-5418 en_US http://dx.doi.org/10.1103/PhysRevB.85.195431 Physical Review B Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Li, Qing Hoogeboom-Pot, Kathleen Nardi, Damiano Murname, Margaret M. Kapteyn, Henry C. Siemens, Mark E. Anderson, Erik H. Hellwig, Olav Dobisz, Elizabeth Gurney, Bruce Yang, Ronggui Nelson, Keith Adam Generation and control of ultrashort-wavelength two-dimensional surface acoustic waves at nanoscale interfaces |
| title | Generation and control of ultrashort-wavelength two-dimensional surface acoustic waves at nanoscale interfaces |
| title_full | Generation and control of ultrashort-wavelength two-dimensional surface acoustic waves at nanoscale interfaces |
| title_fullStr | Generation and control of ultrashort-wavelength two-dimensional surface acoustic waves at nanoscale interfaces |
| title_full_unstemmed | Generation and control of ultrashort-wavelength two-dimensional surface acoustic waves at nanoscale interfaces |
| title_short | Generation and control of ultrashort-wavelength two-dimensional surface acoustic waves at nanoscale interfaces |
| title_sort | generation and control of ultrashort wavelength two dimensional surface acoustic waves at nanoscale interfaces |
| url | http://hdl.handle.net/1721.1/71687 https://orcid.org/0000-0001-7804-5418 |
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