We utilized a nonlinear post-compression technique to generate 675-fs, 9.2-μm CO2 laser pulses with a peak power of 1.6 TW. This achievement represents the highest peak power ever attained in the femtosecond pulse format within the long-wave infrared (LWIR) spectral range. The successful implementation of this post-compression technique opens avenues for the development of few-cycle, multi-terawatt 9–10 μm lasers, crucial for applications currently relying on near-infrared solid-state lasers, and which stand to benefit from the scaling of laser wavelengths into the long-wave infrared region.

中文翻译：

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太瓦级飞秒长波红外激光器

我们利用非线性后压缩技术来生成 675-fs、9.2-μm CO2峰值功率为 1.6 TW 的激光脉冲。这一成就代表了长波红外 (LWIR) 光谱范围内飞秒脉冲格式所达到的最高峰值功率。这种后压缩技术的成功实施为开发少周期、多太瓦 9-10 μm 激光器开辟了道路，这对于目前依赖近红外固态激光器的应用至关重要，并且将从缩放中受益激光波长进入长波红外区域。