近赤外線の波長で完全な3次元フォトニック・バンドギャップ・クリスタル
1Department of Electronic Science and Engineering, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8501, Japan. Electrotechnical Laboratory, Agency of Industrial Science and Technology (AIST), Ministry of International Trade and Industry (
まとめ
研究者らは,光学波長で完全な帯域間隔を持つ3D光学結晶を製造した. この高度な半導体構造は99.99%の反射率を達成し,コンパクトな光学回路への道を開いた.
科学分野:
- オプトエレクトロニクス (光電子機器)
- 材料科学 材料科学とは
- ナノテクノロジー ナノテクノロジー
背景:
- フォトニック結晶は,ユニークな光操作特性を有しています.
- 光通信の波長で完全な3次元光子帯域ギャップを達成することは,高度な光学デバイスにとって極めて重要です.
- 複雑な光学結晶構造を作成するには,精密な製造技術が必要です.
研究 の 目的:
- 完全な3次元フォトニックバンドギャップを示す人工結晶構造を製造する.
- このバンドギャップ効果を,光通信の波長で達成するために.
- この技術を使用して超小型光学集積回路を作成する可能性を調査する.
主な方法:
- 半導体ストライプを積み重ねることで光子結晶の製造.
- 半導体ストライプに 0.7 マイクロメートルの周期を使用しました.
- 高精度 (30ナノメートル) を高度なウェーファー融合技術を使用して達成しました.
主要な成果:
- 3Dフォトニック結晶構造を成功裏に製造しました.
- 光通信波長で完全な3次元フォトニックバンドギャップ効果を実証しました.
- バンドギャップ効果が40デシベルを超えた (99.99%反射).
結論:
- 3Dフォトニックバンドギャップの成功製造と実証は,重要な成果です.
- 達成された高い反射は,製造された構造の有効性を示している.
- この結果は,3D光学結晶波導体を備えた超小型光学集積回路の開発を奨励する.
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