We demonstrate a 1-kHz, single-shot, dynamic, and sensitive flame temperature measurement using hybrid femtosecond/picosecond vibrational coherent anti-Stokes Raman scattering. This benefits from a 7-cm⁻¹, 240-μJ, and sideband-free picosecond pulse out of a broadband 35-fs pulse through a quasi-common-path second harmonic bandwidth compressor system. Measurements around optimal time delay exhibit superior performance with a temperature inaccuracy of less than 1% and a precision of ∼2% at 1790 K. These results demonstrate the advantages and potential for the accurate and fast temperature measurement in practical or harsh environments.

中文翻译：

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动态和灵敏的混合fs / ps振动CARS测温，使用准共路径二次谐波带宽压缩探头

我们演示了使用混合飞秒/皮秒振动相干反斯托克斯拉曼散射的1 kHz，单脉冲，动态和灵敏的火焰温度测量。从7厘米此好处^-1，240- μ J和边带-自由皮秒脉冲宽带35-FS脉冲通过一个准共用路径二次谐波带宽压缩机系统的出。最佳延时附近的测量表现出卓越的性能，在1790 K时的温度误差小于1％，精度约为2％。这些结果证明了在实际或苛刻环境中进行准确快速的温度测量的优势和潜力。