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相关概念视频

Photoluminescence: Applications01:14

Photoluminescence: Applications

Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
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Fluorometers and spectrofluorometers are two types of instruments used for measuring molecular fluorescence. These instruments differ in how they select excitation and emission wavelengths and the type of light sources they utilize. Fluorometers use absorption interference filters to choose excitation and emission wavelengths. The excitation source in a fluorometer is typically a low-pressure mercury vapor lamp that emits intense lines distributed throughout the ultraviolet and visible regions.

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从双腔矿装置发电激光

Chen Zou1,2, Zhixiang Ren3, Kangshuo Hui3

  • 1State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou, China. zouchen@zju.edu.cn.

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|August 27, 2025
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概括

研究人员开发了一种电驱动的矿激光器, 这一突破为光电子提供了低值激光和更高的稳定性.

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科学领域:

  • 光电子产品
  • 材料科学
  • 半导体物理

背景情况:

  • 解决方案处理的半导体激光器对可穿戴和可扩展的应用具有前景.
  • 金属化物矿使波长可调,在光学送下低值激光.
  • 电力驱动的矿半导体激光仍然是一个重大挑战.

研究的目的:

  • 展示一个电驱动的矿激光器.
  • 克服目前的矿激光技术的局限性.
  • 探索矿激光在数据传输和计算方面的潜力.

主要方法:

  • 通过垂直集成单晶矿微腔与矿LED (PeLED) 子单元,构建了一个双腔装置.
  • 使用脉冲电刺激来实现激光作用.
  • 描述了设备的激光值,操作稳定性和调制带宽.

主要成果:

  • 在脉冲电刺激下达到92 A cm-2的最小激光值,明显低于有机激光.
  • 经过证明的运行半衰期 (T50) 为1.8小时,性能优于电有机激光器.
  • 通过36.2MHz的带宽展示了快速调制能力.

结论:

  • 集成的双腔结构是实现高效的能量传输和激光作用的关键.
  • 电驱动的矿激光器为先进的光电子应用提供了一个有希望的替代品.
  • 展示的设备具有高速数据传输和计算任务的潜力.