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

Infrared (IR) Spectroscopy: Overview01:09

Infrared (IR) Spectroscopy: Overview

1.9K
When electromagnetic radiation passes through a material, atoms or molecules transition from a lower to a higher energy state by absorbing radiation corresponding to the energy difference between the two states. The absorption of infrared (IR) radiation causes transitions between vibrational energy levels in a molecule. Therefore, IR spectroscopy is a useful analytical tool for determining the molecular structure of molecules.
Different compounds display unique properties due to their...
1.9K
IR Spectrometers01:25

IR Spectrometers

1.2K
There are two main infrared (IR) spectrophotometers: dispersive IR spectrometers and Fourier transform infrared (FTIR) spectrometers. In a dispersive IR spectrometer, a beam of infrared radiation produced by a hot wire is divided into two parallel equal-intensity beams using mirrors. One beam passes through the sample, while another is a reference beam. The beams then move through the monochromator, which separates the radiations into a continuous spectrum of different frequencies. The...
1.2K
Carrier Generation and Recombination01:22

Carrier Generation and Recombination

589
Carrier generation is the process by which electron-hole pairs (EHPs) are created within the semiconductor. In direct-bandgap semiconductors, such as gallium arsenide (GaAs), this occurs efficiently when energy absorption prompts valence electrons to leap into the conduction band, leaving behind holes.
This process is given by the generation rate G and is efficient due to the conservation of momentum between the valence band maximum and conduction band minimum.
Indirect generation involves an...
589

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

Spatio-spectral light-by-light moulding in multimode fibre.

Nature communications·2026
Same author

Additive Effects of <i>N</i>-Acetylcysteine and [R<sub>4</sub>W<sub>4</sub>] Combination Treatment on <i>Mycobacterium avium</i>.

International journal of molecular sciences·2025
Same author

Correction: Optimizing Mask R-CNN for enhanced quinoa panicle detection and segmentation in precision agriculture.

Frontiers in plant science·2025
Same author

High-repetition rate ultrafast burst laser processing of copper and silicon up to 15 GHz.

Optics express·2025
Same author

Second harmonic generation in monolithic GaAs shallow waveguides.

Optics express·2025
Same author

High efficiency second harmonic generation in transverse orientation patterned gallium phosphide waveguides.

Optics express·2025
Same journal

Investigating degradation mechanisms in organic light-emitting diodes using operando electrically pumped spectroscopy.

Light, science & applications·2026
Same journal

Two-photon 3D imaging of optically stimulated neural activity at 100 Hz.

Light, science & applications·2026
Same journal

Quasi-bound states in the continuum driven photoresponse in multiple quantum wells for machine vision.

Light, science & applications·2026
Same journal

Spin-photon qubits for scalable quantum network.

Light, science & applications·2026
Same journal

Dual-mode switchable and reconfigurable Van der Waals phototransistor for multi-state image encryption.

Light, science & applications·2026
Same journal

Weak polarization electric field Ⅲ-N LEDs on polar plane with enhanced efficiency and strong lateral carrier confinement.

Light, science & applications·2026
查看所有相关文章

相关实验视频

Updated: Jul 13, 2025

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
09:39

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation

Published on: May 27, 2013

12.4K

基于GaAs芯片的中红外超连续生成.

Geoffroy Granger1, Myriam Bailly2, Hugo Delahaye1

  • 1Université de Limoges XLIM UMR CNRS 7252, 123 Av. A. Thomas, 87060, Limoges, France.

Light, science & applications
|October 17, 2023
PubMed
概括
此摘要是机器生成的。

研究人员开发了一种新的中红外超连续光源,使用有方向图案的化波导. 这种紧的桌面系统为先进的光谱和成像应用提供了比同步光子显著更高的亮度.

更多相关视频

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

6.3K
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

11.5K

相关实验视频

Last Updated: Jul 13, 2025

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation
09:39

In-situ Tapering of Chalcogenide Fiber for Mid-infrared Supercontinuum Generation

Published on: May 27, 2013

12.4K
Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing
10:42

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

6.3K
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
10:17

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier

Published on: July 12, 2017

11.5K

科学领域:

  • 光子学和激光技术的发展
  • 材料科学 材料科学 材料科学
  • 频谱学是一种光谱学.

背景情况:

  • 中等红外线 (MIR) 光使得用于医学诊断的高分辨率分子光谱学.
  • 同步光源提供MIR光,但它们很大,难以进入.
  • 需要桌面MIR光源来推进生物和医学研究.

研究的目的:

  • 引入导向模式化 (OP-GaAs) 波导作为MIR超连续生成的新平台.
  • 开发一个紧的,高亮度的MIR光源作为同步光子的替代品.
  • 探索功率扩展和先进应用的潜力.

主要方法:

  • 优化用于MIR超连续生成的OP-GaAs波导的制造.
  • 波导和基于光纤的激光器对匹配的组速度进行并行优化.
  • 在2750纳米的波导用几纳元的脉冲送波导,以实现超连续生成.

主要成果:

  • 使用OP-GaAs波导实现了跨越4至9微米的超连续生成.
  • 新型MIR源的亮度是第三代同步光源的20倍.
  • 通过调整波导和激光参数,非线性动力学被证明是可调的.

结论:

  • OP-GaAs波导为开发高亮度MIR超连续光源提供了一个多功能平台.
  • 这项技术可实现先进的高分辨率光谱和成像.
  • 在MIR中,有可能将功率扩展到瓦特级超宽带频率.