Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Photoluminescence: Fluorescence and Phosphorescence01:23

Photoluminescence: Fluorescence and Phosphorescence

2.1K
Photoluminescence is a process where a molecule absorbs light energy and re-emits it in the form of light. This phenomenon occurs when a substance absorbs photons, promoting its electrons to higher energy level excited states, followed by a relaxation process in which the electrons return to their original ground state energy levels and emit light. Photoluminescence is widely observed in various materials, including semiconductors, and organic and inorganic compounds.
A pair of electrons in a...
2.1K
Fluorescence and Phosphorescence: Instrumentation01:25

Fluorescence and Phosphorescence: Instrumentation

614
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.
614

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

A Fluoroether Co-Solvent Engineering Interfacial and Solvation Dynamics for Durable Lithium-Oxygen Batteries.

Angewandte Chemie (International ed. in English)·2026
Same author

Polymorphic phase engineering of flat plasmons in a correlated oxide.

Nanoscale·2026
Same author

Synergistic Enhancement of Birefringence in Metal Benzoxazolium Complexes by π-Conjugated [C<sub>9</sub>H<sub>10</sub>NO]<sup>+</sup> and Triangular [HgI<sub>3</sub>]<sup>-</sup> Motifs.

Inorganic chemistry·2026
Same author

Tunable elastic wave energy localization and harvesting in phononic crystals with decoupled double incomplete line defects.

The Journal of the Acoustical Society of America·2026
Same author

Anapole-state-enhanced 2D chiral photodetector operating in the near-infrared second window.

Nature communications·2026
Same author

Chiral hinge-surface transport across dimensions in three-dimensional magneto-optical topological materials.

Science advances·2026

相关实验视频

Updated: Jul 9, 2025

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

17.0K

光子 - 声子协同的激光.

Yu Fu1, Fei Liang1, Cheng He2

  • 1State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan, China.

Nature communications
|December 7, 2023
PubMed
概括

这项研究展示了一种新的激光设计,利用热量和声子来提高激光效率,这是一个反直觉的方法. 研究人员观察到一种新的激光发射波长的转变,证明了热量.

更多相关视频

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.5K
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.6K

相关实验视频

Last Updated: Jul 9, 2025

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

17.0K
High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy
10:40

High Resolution Phonon-assisted Quasi-resonance Fluorescence Spectroscopy

Published on: June 28, 2016

7.5K
Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators
09:23

Quantum State Engineering of Light with Continuous-wave Optical Parametric Oscillators

Published on: May 30, 2014

14.6K

科学领域:

  • 光学和光子学 在光学和光子学.
  • 固态物理 固态物理
  • 材料科学 材料科学 材料科学

背景情况:

  • 激光器的理论基础是基于受刺激的光子发射,由爱因斯坦于1917年建立.
  • 热声声和热引起的非辐射转换通常会阻碍激光效率.
  • 传统的激光操作依赖于光子,而热量往往是有害的因素.

研究的目的:

  • 为了研究一种反直觉的方法:通过通过热量增强的协作光子 - 声子送来提高激光效率.
  • 探索温度作为可控制参数在激光操作中的作用.
  • 开发一种新的战略,以实现高效,低值的激光设备.

主要方法:

  • 采用合的伊特瓦纳酸盐 (Nd:YVO4) 晶体进行协同送激光系统的实验实现.
  • 在不同温度条件下观察激光过渡.
  • 分析光子功率值 (Pth) 和温度值 (Tth) 之间的关系,以建立激光相位图.

主要成果:

  • 在高温下,在Nd:YVO4晶体中观察到从无声子1064nm激光到声子1176nm激光的过渡.
  • 在高温下实现了Phonon-pumped人口逆转,这表明热的有益作用.
  • 除了光子功率值 (Pth),还确定了一个额外的温度值 (Tth),形成一个二维的激光相位图.
  • 验证了一种一般关系 Pth = C/Tth,类似于库里定律,将功率和温度值联系起来.

结论:

  • 可以利用热量来提高激光效率,通过协作光子 - 声子机制,与传统的理解相反.
  • 该研究为激光控制和优化引入了一个新的维度 (温度).
  • 通过利用热效应,这些发现为开发先进,高效和低值激光器件铺平了道路.