書誌事項
- タイトル別名
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- Periodic Nanostructure Formation Induced by Short-range Surface Plasmon Polaritons Excited with Few-cycle Laser Pulses
抄録
<p>We have demonstrated that 7-fs, ~810-nm laser pulses can produce a much finer periodic nanostructure on a diamond-like carbon (DLC) film than that formed with 100-fs, ~800-nm laser pulses through ablation in air. The minimum period size is ~60 nm, corresponding to ~1/13 of the center wavelength. We report the physical mechanism responsible for finer nanostructuring. It has been found that the thickness of bonding structural changes with 7-fs pulses is much thinner than that with 100-fs pulses. The results show that the 7-fs pulses with high peak power density at low fluence create a few-nm-thick layer with high-density electrons and excite short-range surface plasmon polaritons, which have a large wave number around the layer and induce the plasmonic near-field nanoablation. The period size estimated by using a model target reproduces well the observed size of nanostructures. </p>
収録刊行物
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- 電気学会論文誌Ｃ（電子・情報・システム部門誌）
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電気学会論文誌Ｃ（電子・情報・システム部門誌） 142 (4), 454-459, 2022-04-01
一般社団法人 電気学会
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詳細情報 詳細情報について
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- CRID
- 1390573242789935616
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- ISSN
- 13488155
- 03854221
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
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- 抄録ライセンスフラグ
- 使用不可