Absolute calibration of optical streak cameras on picosecond time scales using supercontinuum generation.
Absolute calibration of optical streak cameras on picosecond time scales using supercontinuum generation.
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DOI：
10.1364/ao.56.006982
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发表时间：
2017-08
期刊：
影响因子：
1.9
通讯作者：
S. Patankar;E. Gumbrell;T. Robinson;E. Floyd;N. Stuart;A. Moore;J. Skidmore;R. Smith
中科院分区：
文献类型：
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作者：
S. Patankar;E. Gumbrell;T. Robinson;E. Floyd;N. Stuart;A. Moore;J. Skidmore;R. Smith
我们报告了一种在液体电池中使用高稳定性，激光驱动的超连续介质产生的新方法，以校准快速光学条纹相机在最快扫描速度下作为波长函数的绝对光子响应。研究人员开发了一种稳定的脉冲白光光源，该光源基于在盐溶液中使用自相位调制，可在皮秒时间尺度上提供所需的亮度，使条纹相机能够在完全动态操作下进行校准。测量的光谱亮度允许在宽光谱范围内（425-650 nm）进行绝对光子响应校准。使用Photonis P820PSU条纹管对两个Axis Photonique条纹相机进行校准，证明了定性地遵循光电阴极响应的响应。峰值灵敏度比背景高一个光子/计数。绝对动态灵敏度比静态灵敏度小一个数量级。我们将此归因于荧光粉的动态响应较低。
We report a new method using high-stability, laser-driven supercontinuum generation in a liquid cell to calibrate the absolute photon response of fast optical streak cameras as a function of wavelength when operating at fastest sweep speeds. A stable, pulsed white light source based around the use of self-phase modulation in a salt solution was developed to provide the required brightness on picosecond time scales, enabling streak camera calibration in fully dynamic operation. The measured spectral brightness allowed for absolute photon response calibration over a broad spectral range (425-650 nm). Calibrations performed with two Axis Photonique streak cameras using the Photonis P820PSU streak tube demonstrated responses that qualitatively follow the photocathode response. Peak sensitivities were one photon/count above background. The absolute dynamic sensitivity is less than the static by up to an order of magnitude. We attribute this to the dynamic response of the phosphor being lower.