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Photoacoustic spectroscopy of weakly absorbing media using nanosecond laser pulses

机译:纳秒激光脉冲对弱吸收介质的光声光谱

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The anomalous behavior of the expansion coefficient of water near 4 °C was studied in a thin photoacoustic cell. Weshow that the thermal expansion of water vanishes at temperatures lower than 3 ºC when the optical path is shortenedbelow 0.1 mm. We explai
机译:在薄光声电池中研究了4°C附近水的膨胀系数的异常行为。我们显示,当光路缩短到0.1 mm以下时,水的热膨胀在低于3°C的温度下消失。我们解释

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