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Polymers02:34

Polymers

41.4K
The word polymer is derived from the Greek words “poly” which means “many” and “mer” which means “parts”. Polymers are long chains of molecules composed of repeating units of smaller molecules, known as monomers. They either occur naturally, such as DNA and proteins, or can be constructed synthetically, like plastics. They have varied structural characteristics, such as linear chains, branched chains, or complex networks, that contribute to the...
41.4K
Polymers02:34

Polymers

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Elements and Compounds01:27

Elements and Compounds

105.5K
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond.
Elements
Elements are classified as atomic or molecular based on the nature of their basic units. They are unique forms of matter with specific chemical and physical properties that cannot break down into smaller substances by ordinary chemical reactions. There...
105.5K
Periodic Classification of the Elements04:00

Periodic Classification of the Elements

60.5K
The periodic table arranges atoms based on increasing atomic number so that elements with the same chemical properties recur periodically. When their electron configurations are added to the table, a periodic recurrence of similar electron configurations in the outer shells of these elements is observed. Because they are in the outer shells of an atom, valence electrons play the most important role in chemical reactions. The outer electrons have the highest energy of the electrons in an atom...
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Key Elements for Plant Nutrition02:35

Key Elements for Plant Nutrition

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Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the...
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Classification of Elements and Compounds02:54

Classification of Elements and Compounds

73.8K
Pure substances consist of only one type of matter. A pure substance can be an element or a compound. An element consists of only one type of atom, while a compound consists of two or more types of atoms held together by a chemical bond. Elements are classified as atomic or molecular based on the nature of their basic units.
Compounds are pure substances composed of two or more elements in fixed, definite proportions. Compounds are classified as ionic or molecular (covalent) based on the bonds...
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In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
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柔軟なカルコゲニドポリマーに基づく中赤外線マイクロ光学要素.

Feng Liu, Zixuan Huang, Jiao Li

    Optics letters
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    PubMed
    まとめ
    この要約は機械生成です。

    柔軟なカルコゲニドポリマーは,赤外線光学のための費用対効果の高いソリューションを提供します. 研究者は,先進的なIR画像とビームシェーピングアプリケーションのためにS-DADSポリマーを使用して,ブロードバンド赤外線マイクロ光学コンポーネントを製造しました.

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    科学分野:

    • マテリアルサイエンス 材料科学
    • 光学工学は,光学工学である.
    • ポリマー化学のポリマー化学について

    背景:

    • 従来の赤外線材料は,高価で硬直度が高いことが多い.
    • カルコゲニドポリマーは,有望で費用対効果の高い代替品です.
    • 透明性が向上した柔軟な赤外線光学材料が必要である.

    研究 の 目的:

    • 柔軟なカルコゲニドポリマーを使用してマイクロ光学要素の製造を実証する.
    • 新しいS-DADSポリマーを使用して,ブロードバンドの赤外線透明性を達成します.
    • 様々な赤外線アプリケーションにおける製造部品の機能性を検証する.

    主な方法:

    • 柔軟なカルコゲニドポリマー (S-DADS) を使用したマイクロ光学要素の製造.
    • ブロードバンド赤外線マイクロ光学コンポーネントを作成するために鋳造プロセスを利用しました.
    • IRイメージング,波長センシング,ビームシェーピングにおけるコンポーネント性能の実験的検証.

    主要な成果:

    • 柔軟なカルコゲニドポリマーからマイクロ光学要素を成功裏に製造した.
    • S-DADSポリマーは,長波赤外線領域に拡張された透明性ウィンドウを示しています.
    • IRイメージング,波長センシング,機械的に調節可能なビームシェーピングの機能性が実証されています.

    結論:

    • 柔軟なカルコゲニドポリマーは,費用対効果の高い赤外線マイクロ光学に適しています.
    • 開発されたS-DADSポリマーは,ブロードバンドIRマイクロ光学部品の製造を可能にします.
    • これらのコンポーネントは,高度な画像とビーム制御を含む,さまざまな赤外線アプリケーションのための大きな可能性を秘めています.