研究者报告了氟硼酸铵晶体NH4B4O6F（简称ABF）作为一种具有潜力的VUV产生材料。通过构建特定相位匹配角度的VUV器件，研究实现了创纪录的158.9 纳米相位匹配SHG输出，并在177.3 纳米波长下获得了最大纳秒脉冲能量4.8 mJ，转换效率达5.9%。其增强的非线性光学性能归因于氟基单元优化排列形成的非对称子晶格结构。该研究为非线性光学领域提供了新的材料，有望应用于基于ABF晶体的小型化 ...

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For decades, researchers have attempted to pinpoint the specific areas of the brain responsible for human intelligence. A new ...

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King's College London and San Diego State University in California have finally decoded the "molecular stickers" that make ...

A new imaging breakthrough combines ultrasound and light-based techniques to generate vivid 3D images that show both tissue ...

While your friends are out socializing, science reveals that your "boring" choice to stay home with a book is actually ...

Small shifts toward whole foods may support better mental and emotional well-being.