水窓のコヒーレントの柔らかいX線生成,準相マッチング
Emily A Gibson1, Ariel Paul, Nick Wagner
1Department of Physics and JILA, University of Colorado, Boulder, CO 80309-0440, USA.
Science (New York, N.Y.)
|October 4, 2003
まとめ
研究者は,準相対応周波数変換を使用して,水窓の柔らかいX線スペクトルで,強化された一貫した光発電を達成しました. この画期的な発見により,顕微鏡とスペクトロスコーピーのためのコンパクトで一貫した柔らかいX線源が可能になりました.
科学分野:
- オプティクスは光学です.
- X線物理 X線物理学
- レーザー技術 レーザー技術
背景:
- 一貫した柔らかいX線生成は,高度な画像とスペクトロスコピーのために不可欠です.
- 伝統的な方法は,水窓スペクトル (2.34.4 nm) に到達する際の制限に直面しています.
- 非線形光学技術は波長変換の可能性を秘めているが,相相対応が必要である.
研究 の 目的:
- 水窓の柔らかいX線スペクトルのコヘランライトの強化された生成を実証する.
- 柔らかいX線のための非線形周波数変換における相不一致の制限を克服するために.
- 柔らかいX線領域における非線形光学の応用を探求する.
主な方法:
- 超高速レーザーパルスの準相対応周波数変換を用いた.
- 周期的に調節される直径のガスで満たされた空洞の波導体を使用した.
- 光変換の非線形媒体としてネオンガスを使用した.
主要な成果:
- 水窓内の4.4ナノメートルで,強化された一貫した光発電を達成しました.
- レーザーと生成された柔らかいX線光の間の相不一致を部分的に補償します.
- 柔らかいX線スペクトルにおける非線形光学技術を成功裏に応用した.
結論:
- 非線形光学を使用して,水窓で効果的な一貫した光発電が実証されました.
- 開発された技術は,コンパクトな一貫した柔らかいX線源の展望を前進させる.
- 結果は,バイオミクロスコーピーと化学スペクトルスコピーのアプリケーションをサポートします.
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