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Sunflower effect: enhancement of laser-pulse-induced impulse in the beam incident direction due to surface undulation
http://hdl.handle.net/2237/00030684
http://hdl.handle.net/2237/000306849f0ae95c-48cd-4535-8c3b-1b8b5427e269
名前 / ファイル | ライセンス | アクション |
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Katagiri-Oblique_Impulse_Enhancement-Physica_Scripta-190331 (808.6 kB)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2019-09-13 | |||||
タイトル | ||||||
タイトル | Sunflower effect: enhancement of laser-pulse-induced impulse in the beam incident direction due to surface undulation | |||||
言語 | en | |||||
著者 |
Katagiri, Yusuke
× Katagiri, Yusuke× Sasoh, Akihiro |
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アクセス権 | ||||||
アクセス権 | open access | |||||
アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||
権利 | ||||||
言語 | en | |||||
権利情報 | This is an author-created, un-copyedited version of an article published in {Physica Scripta}. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at {https://doi.org/10.1088/1402-4896/ab1944}. “This Accepted Manuscript is available for reuse under a CC BY-NC-ND 3.0 licence after the 12 month embargo period provided that all the terms of the licence are adhered to” | |||||
抄録 | ||||||
内容記述 | An impulse generated by laser ablation bas been implicitly assumed to be directed in the normal direction to the irradiation surface. In this study, however, the impulse induced by an Nd:YAG laser pulse with a wavelength of 1.064 μm irradiated on to a macroscopically flat aluminium plate ablator was enhanced in the direction of the laser beam incidence due to microscopic surface undulation, the characteristic height and pitch of which are tens of the beam wavelengths. The inner product of the incident laser beam vector and the normal vector to the surface is locally enhanced on the 'sunny' side. In the vapor regime in which the impulse is an increasing function of the fluence, the effective fluence and the impulse component in the incident direction are enhanced. With repetitively irradiating laser pulses on to the same spot with a fluence of 4.5 J cm^−2 nominal to a macroscopically flat surface, the impulse gradually increased due to this 'sunflower' effect, then became saturated. The momentum coupling coefficient in the saturation stage became an increasing function of the angle of incidence. This impulse performance will become considerably important in the application of laser ablation to the remote motion control or even deorbiting of space debris. | |||||
言語 | en | |||||
内容記述タイプ | Abstract | |||||
内容記述 | ||||||
内容記述 | ファイル公開:2020-08-01 | |||||
言語 | ja | |||||
内容記述タイプ | Other | |||||
出版者 | ||||||
言語 | en | |||||
出版者 | IOP publishing | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプresource | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | journal article | |||||
出版タイプ | ||||||
出版タイプ | AM | |||||
出版タイプResource | http://purl.org/coar/version/c_ab4af688f83e57aa | |||||
DOI | ||||||
関連タイプ | isVersionOf | |||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1088/1402-4896/ab1944 | |||||
ISSN(print) | ||||||
収録物識別子タイプ | PISSN | |||||
収録物識別子 | 0031-8949 | |||||
書誌情報 |
en : Physica Scripta 巻 94, 号 8, p. 085004, 発行日 2019-08 |
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著者版フラグ | ||||||
値 | author |