相关实验视频
Updated: Sep 11, 2025
10:17
20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
Published on: July 12, 2017
11.6K
概括
碳化 (Ta2AlC) 有效调节光纤激光器中的超快脉冲. 这种材料能够产生皮秒单子脉冲,证明了其在模式锁定激光应用中的潜力.
科学领域:
- 材料科学 材料科学 材料科学
- 光学和光子学 在光学和光子学.
- 激光物理 激光物理
背景情况:
- 超快脉冲生成对于各种科学和技术应用至关重要.
- 使用和吸收器的被动模式锁定提供了一种强大的方法来产生超短激光脉冲.
- 碳化 (Ta2AlC) 是一种具有潜在光电子性能的新兴材料.
研究的目的:
- 为了研究碳化 (Ta2AlC) 作为辅助纤维 (EDF) 激光器中被动脉冲调节器的功效.
- 描述Ta2AlC在激光应用中的非线性光学特性.
- 通过使用基于Ta2AlC的调制器来演示超快模式锁定脉冲的生成.
主要方法:
- Ta2AlC被合成并嵌入聚乙烯醇矩阵中,以创建一个可和吸收器.
- 和式Ta2AlC吸收器被整合到一个长的EDF激光腔中.
- 锁定模式激光器的性能通过分析输出特征,如中心波长,重复率和脉冲宽度来评估.
主要成果:
- 该Ta2AlC调节器的和吸收率为6.9%,和强度为100MW/cm2.
- 在EDF激光腔中实现了自启动模式锁定.
- 在1561.7nm的中心波长和1.866MHz的重复率下,产生了3.80ps的脉冲宽度的皮秒单子脉冲列车.
结论:
- Ta2AlC作为一个有效的被动调节器,用于生成超快模式锁定脉冲.
- 该材料的性能适合集成到光纤激光系统中,用于产生超短脉冲.
- 这项工作突显了Ta2AlC在推进超快光学和激光技术方面的潜力.
相关概念视频
01:19Rectangular and Triangular Pulse Function
1.1K
The unit rectangular pulse function is mathematically represented by a rectangular function centered at the origin with a height of one unit. This function is defined by two parameters: T, which specifies the center location of the pulse along the time axis, and τ, which determines the pulse duration.
For example, consider a rectangular pulse with a 5V amplitude, a 3-second duration, and centered at t=2 seconds. This pulse can be expressed using the rectangular function, written as,
For example, consider a rectangular pulse with a 5V amplitude, a 3-second duration, and centered at t=2 seconds. This pulse can be expressed using the rectangular function, written as,
1.1K
01:17NMR Spectrometers: Radiofrequency Pulses and Pulse Sequences
917
A pulse is a short burst of radio waves distributed over a range of frequencies that simultaneously excites all the nuclei in the sample. Upon passing a radio frequency pulse along the x-axis, the nuclei absorb energy corresponding to their Larmor frequencies and achieve resonance. This shifts the net magnetization vector from the z-axis toward the transverse plane. This angle of rotation of the magnetization vector, or the flip angle, is proportional to the duration and intensity of the pulse.
917
01:22Applications of RC Circuits
3.3K
A relaxation oscillator is one of the applications of RC circuits. A neon lamp relaxation oscillator comprises a capacitor, a resistor, a voltage source, and a lamp. The lamp acts like an open circuit, with infinite resistance until the potential difference across the lamp reaches a specific voltage. At that voltage, the lamp acts like a short circuit with zero resistance, and the capacitor discharges through the lamp, thus producing light. Once the capacitor is fully discharged through the...
3.3K