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相关概念视频

Conservative Site-specific Recombination and Phase Variation02:53

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Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
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在任意位置重新配置的全固态拓激光在任意位置.

Bo Wu1, Jinting Ding2, Wenchao Yan1

  • 1School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, China.

Nature communications
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概括
此摘要是机器生成的。

研究人员使用固态激光晶体开发了一种可重新配置的拓激光. 这种新设计克服了以前的拓激光器的局限性,使得可调节的激光站点和高输出功率成为可能.

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科学领域:

  • 光子学和激光技术的发展
  • 凝聚物质物理学 凝聚物质物理学
  • 非赫尔密斯系的系统

背景情况:

  • 拓激光器提供了强大的光子系统,但面临着诸如低增益和固定激光站点等局限性.
  • 目前基于半导体的拓激光器受到微腔和振荡器设计的限制.

研究的目的:

  • 为了呈现一个全固态,可重新配置的拓激光器.
  • 克服基于半导体的拓激光器的局限性.
  • 探索新的拓激光现象和应用.

主要方法:

  • 在一个无序的激光晶体 (Nd:BaLaGa3O7) 中制造Su-Schrieffer-Heeger波导阵列.
  • 利用固态激光器的高增益来实现连续波运行.
  • 对拓激光特征的实验和理论分析.

主要成果:

  • 证明了单模式,连续波拓激光,输出功率超过100mW.
  • 在传统的边缘位置,微不足道的格子终点和可重新配置的任意位置观察到拓激光.
  • 确定了非赫密斯等价时间对称过渡作为非传统激光行为的原因.

结论:

  • 开发的固态拓激光器是可重新配置和位置选择的.
  • 这项工作为非赫米特系统的拓相过渡提供了基本的见解.
  • 为强大的,可重新配置的拓光子设备铺平了道路,用于先进的激光和光学处理.