相关实验视频

Updated: Jul 17, 2025

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

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

Published on: July 12, 2017

两个mJ级,高能完全被动的KGW/Tm:YLF拉曼激光

Nachmen Gelbach, Yaakov Neustadter, Menachem Henig

|September 1, 2023

概括

这项研究表明,在2微米范围内的被动KGW拉曼激光器创下了新纪录,使用刺激的拉曼散射实现了每脉冲超过2mJ的能量和高转换效率.

科学领域:

激光物理激光物理
非线性光学是非线性光学.
材料科学材料科学材料科学

背景情况:

在2微米光谱范围内开发高效的激光器对于各种应用至关重要.
刺激拉曼散射 (SRS) 提供了一种途径,可以从现有的激光源生成新的波长.
全被动配置是理想的简单性和稳健性.

研究的目的:

开发和描述一个完全被动的外腔KGW拉曼激光器,在2微米光谱范围内运行.
为了在这个光谱区域中实现SRS每脉冲能量和转换效率的创纪录.
为了研究KGW晶体在被动拉曼激光设置中的性能.

主要方法:

使用Tm:YLF激光在1879.5nm运行作为源.
采用完全被动的外部腔设计,其中包含KGW (KY3(WO4)2) 晶体.
研究刺激拉曼散射,以在更长的波长产生输出.

主要成果:

该KGW拉曼激光器成功发射了2197nm和2263nm的两条线.
这两条线路的最大能量输出分别为1.86mJ和2.08mJ.
记录了40%和45.3%的最大转换效率,为这种配置创造了新的记录.

结论:

开发的完全被动的KGW拉曼激光器代表了在2微米波长生成方面取得的重大进展.
取得的性能超过了每脉冲能量和2微米范围内的被动拉曼激光器转换效率的先前记录.
这项工作突出了KGW晶体在高性能SRS应用中的潜力.

更多相关视频

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Low-cost Custom Fabrication and Mode-locked Operation of an All-normal-dispersion Femtosecond Fiber Laser for Multiphoton Microscopy

Published on: November 22, 2019

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Direct Imaging of Laser-driven Ultrafast Molecular Rotation

Published on: February 4, 2017

相关概念视频

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic Absorption Spectroscopy: Radiation and Light Sources

Atomic absorption spectroscopy (AAS) relies on the Beer-Lambert law, which requires that the radiation source emits a narrow range of wavelengths to match the absorption characteristics of the analyte atom. The primary criteria for choosing an appropriate radiation source in AAS is to provide a precise and intense emission at specific wavelengths that will allow accurate detection of the analyte.
Two common narrow-range 'line' sources used in AAS are hollow-cathode lamps (HCLs) and...

Raman Spectroscopy Instrumentation: Overview

Raman Spectroscopy Instrumentation: Overview

A conventional Raman spectrophotometer includes a laser source, a sample holding system, a wavelength selector, and a detector.
The monochromatic laser source, typically using visible or near-infrared radiation, generates a highly focused beam of light. This light interacts with the molecules of the sample, scattering some of the light. Liquid and gaseous samples are usually tested in ordinary glass capillaries, while solids can be analyzed as powders packed in capillaries or as potassium...