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相対論的電子からの高電位テラヘルツ放射線

G L Carr¹, Michael C Martin, Wayne R McKinney

¹National Synchrotron Light Source, Brookhaven National Laboratory, Upton, New York 11973, USA.

|November 15, 2002

まとめ

研究者は,加速器を使用して,高電力ブロードバンドテラヘルツ (THz) ソースを開発しました. このTHz放射線生成の突破は,先進的なイメージングと材料科学のアプリケーションに前例のないパワーを提供します.

科学分野:

物理物理学物理学とは
電気工学電気工学とは
マテリアルサイエンス材料科学

背景:

テラヘルツ (THz) 放射線は,電子とフォトニクスの交差点にあるアプリケーションにとって非常に重要です.
熱源やレーザー駆動システムなどのブロードバンドTHz放射線を生成する既存の方法は,出力に制限があります.
高出力THz源は,非線形現象の探査と高度な材料の特徴づけに不可欠です.

研究の目的:

高電力ブロードバンドTHz放射線源の開発と検証について報告する.
加速器のサブピコ秒電子束から発生するTHz放射線の生成を実証する.
この新しい源泉が様々な科学技術的な応用に持つ可能性を強調する.

主な方法:

加速器内のサブピコ秒電子束を利用する.
THzの放射線生成を確認するための計算と実験的測定を行う.
生成されたTHz放射線の平均電力とスペクトル特性を特徴付ける.

主要な成果:

サブピコ秒電子束から高出力のブロードバンドTHz放射を成功裏に生成した.
平均電力約20ワットを達成し,既存の電源を大幅に上回りました.
新しいソースでリアルタイムで全フィールドのTHz画像の実現可能性が確認されました.

結論:

開発された加速器ベースのTHz源は,前例のない平均電力を提供します.
この高パワーのTHz放射線は,材料科学,生物医学画像,非線形光学における高度な応用への道を開きます.
このソースは,材料の特性や動的プロセスのリアルタイムのイメージングを可能にします.

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