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超短パルスレーザーを用いたナノ物質制御技術の開発

メンバー: 宮地悟代

分野: 応用物理学、電気電子工学

所属: 工学研究院

キーワード: 非線形光学、フェムト秒レーザー、レーザー加工、アト秒レーザー

ウェブサイト:

研究概要

フェムト秒(10の-15乗秒, fs)からアト秒(10の-18乗秒, as)時間領域まで圧縮した高密度光エネルギーを物質に付与し、その特徴的な光応答を新たな応用へと結びつけるための研究を行っています。現在、ナノ物質制御に関する5つのテーマに挑んでいます。
(1) 新しい物理過程に基づくレーザーナノ加工法の開発
(2) fsレーザーナノ加工時の超高速ダイナミクスの解明
(3) fsレーザー誘起表面プラズモンポラリトンの実証
(4) サイクルレーザーパルスによるナノ加工
(5) アト秒レーザーパルスの発生と光・物質の超高速相互作用の解明

主要論文・参考事項

[1] T.Shinonaga, M.Tsukamoto, G.Miyaji, "Periodic nanostructures on titanium dioxide film produced using femtosecond laser with wavelengths of 388 nm and 775 nm", Opt. Express, vol.22, pp.14696-14704 (2014).

[2] K.Miyazaki and G.Miyaji, "Nanograting formation through surface plasmon fields induced by femtosecond laser pulses", J. Appl. Phys., vol.114, pp.153108/1-6 (2014).

[3] (レーザー学会 業績賞 論文賞オリジナル部門 受賞論文) 宮地悟代,宮崎健創, "フェムト秒レーザー誘起表面ナノ周期構造生成の超高速ダイナミクス", レーザー研究, vol.40, pp.816-820 (2013).

[4] G.Miyaji and K.Miyazaki, "Role of multiple shots of femtosecond laser pulses in periodic surface nanoablation", Appl. Phys. Lett., vol.103, pp.071910/1-4 (2013).

[5] G.Miyaji, K.Miyazaki, K.Zhang, T.Yoshifuji, and J.Fujita, "Mechanism of femtosecond-laser-induced periodic nanostructure formation on crystalline silicon surface immersed in water", Opt. Express, vol.20, pp.14848-14856 (2012).

[6] K.Yoshii, G.Miyaji, and K.Miyazaki, "Retrieving angular distributions of high-order harmonic generation from a single molecule", Phys. Rev. Lett., vol.106, pp.13904/1-4 (2011).

お問い合わせ先

東京農工大学・先端産学連携研究推進センター
urac[at]ml.tuat.ac.jp([at]を@に変換してください)

研究要素集検索

Development of nano-scale material processing techniques with ultrashort laser pulses

Research members: Godai MIYAJI PhD.

Research fields: Applied physics, Electrical and electronic engineering

Departments: Institute of Engineering

Keywords: nonlinear optics, femtosecond laser, laser material processing, attosecond laser pulse

Web site:

Summary

I have studied the principle of photon science on nanophotonics, and have tried to apply it to innovative photon technology. Especially, my research interest has been focused on the development of new techniques for material nanoprocessing, material precise control, and measurement of ultrafast dynamics with spatially- and temporally-controlled photons. I briefly describe my research themes, as follows.
(1) Development of laser material processing techniques based on new physical processes
(2) Understanding of ultrafast dynamics in femtosecond laser nanoablation
(3) Evidence of femtosecond-laser-induced surface plasmon polaritons
(4) Nano processing with few-cycle laser pulses
(5) Generation of vacuum ultraviolet attosecond laser pulses and application to observation techniques for ultrafast dynamics of solid surfaces

Reference articles and patents

[1] T.Shinonaga, M.Tsukamoto, G.Miyaji, "Periodic nanostructures on titanium dioxide film produced using femtosecond laser with wavelengths of 388 nm and 775 nm", Opt. Express, vol.22, pp.14696-14704 (2014).

[2] K.Miyazaki and G.Miyaji, "Nanograting formation through surface plasmon fields induced by femtosecond laser pulses", J. Appl. Phys., vol.114, pp.153108/1-6 (2014).

[3] (レーザー学会 業績賞 論文賞オリジナル部門 受賞論文) 宮地悟代,宮崎健創, "フェムト秒レーザー誘起表面ナノ周期構造生成の超高速ダイナミクス", レーザー研究, vol.40, pp.816-820 (2013).

[4] G.Miyaji and K.Miyazaki, "Role of multiple shots of femtosecond laser pulses in periodic surface nanoablation", Appl. Phys. Lett., vol.103, pp.071910/1-4 (2013).

[5] G.Miyaji, K.Miyazaki, K.Zhang, T.Yoshifuji, and J.Fujita, "Mechanism of femtosecond-laser-induced periodic nanostructure formation on crystalline silicon surface immersed in water", Opt. Express, vol.20, pp.14848-14856 (2012).

[6] K.Yoshii, G.Miyaji, and K.Miyazaki, "Retrieving angular distributions of high-order harmonic generation from a single molecule", Phys. Rev. Lett., vol.106, pp.13904/1-4 (2011).

Contact

University Research Administration Center(URAC),
Tokyo University of Agriculture andTechnology
urac[at]ml.tuat.ac.jp
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