论文标题
稳定的激烈1 kHz超级脑中光线
Stable intense 1 kHz supercontinuum light generation in air
论文作者
论文摘要
SuperContinuum（SC）光源在冷凝物质科学，生物学，物理和化学中具有晚期超快激光光谱。与经常使用的光子晶体纤维和散装材料相比，气体飞机的激光丝是超脑产生的伤害免疫。瓶颈问题是从细丝引起的自加热速度以kHz重复速率水平的自加热的震撼力。我们展示了直接在具有多个MJ水平脉冲能量的空气中直接在空气中生成稳定的KHz超脑生成。这是通过通过等离子体波引导和库仑相互作用的影响将外部直流电场应用于空气等离子体丝中实现的。 1 kHz空气丝诱导的SC光的指向和强度抖动都降低了2倍以上。这为稳定的Intense SC发电和其他基于激光丝的应用程序提供了机会。
Supercontinuum (SC) light source has advanced ultrafast laser spectroscopy in condensed matter science, biology, physics, and chemistry. Compared to the frequently used photonic crystal fibers and bulk materials, femtosecond laser filamentation in gases is damage-immune for supercontinuum generation. A bottleneck problem is the strong jitters from filament induced self-heating at kHz repetition rate level. We demonstrate stable kHz supercontinuum generation directly in air with multiple mJ level pulse energy. This is achieved by applying an external DC electric field to the air plasma filament through the effects of plasma wave guiding and Coulomb interaction. Both pointing and intensity jitters of 1 kHz air filament induced SC light are reduced by more than 2 fold. This offers the opportunities for stable intense SC generation and other laser filament based applications in air.
