Fung K H, Tang I N, Munkelwitz H R
Appl Opt. 1987 Apr 1;26(7):1282-7. doi: 10.1364/AO.26.001282.
An optical technique using MIE resonance scattering spectroscopy to monitor the growth of a saline solution droplet is presented. This technique utilizes a quadrupole particle trap to suspend a charged NaCl solution droplet in a water vapor environment and a CO(2) laser to momentarily perturb the droplet-vapor equilibrium. The condensational growth of this droplet is monitored by means of multiple Mie resonances observed at right angle scattering. A least-squares fit, used to evaluate the condensation coefficient of water, shows that the value tends to approach unity. In addition, this new approach reduces the error in dry salt size measurement to <1%.
介绍了一种利用米氏共振散射光谱监测盐溶液液滴生长的光学技术。该技术利用四极粒子阱将带电的氯化钠溶液液滴悬浮在水蒸气环境中，并使用二氧化碳激光瞬间扰动液滴 - 蒸汽平衡。通过在直角散射中观察到的多个米氏共振来监测该液滴的凝结生长。用于评估水的凝结系数的最小二乘法拟合表明，该值趋于接近1。此外，这种新方法将干盐尺寸测量的误差降低到<1%。
