Engineering Research Equipment Grant: Autoscanning Ring Dye Laser System

提出了一种高功率、自动扫描、环形染料激光器系统 通过以下方式对微粒（1至50微米）进行精确分级： 波长依赖共振光谱的手段。 测量 是在一个悬浮在电介质中的单个粒子上进行的 领域 粒子被照亮。 准确度约为 预计为1埃。 除了颗粒大小， 确定颗粒在温度和密度方面受到的力 梯度，蒸发和冷凝速率，成核 率和收集效率。 微粒特性的测量对于许多 研究领域，如制造业（超导体， 半导体，化学品），天气（雾，薄雾，臭氧，核 冬季）和污染控制（烟雾、酸雨、氡）。

A high power,auto-scanning, ring dye laser system is proposed for accurate sizing of micro-particles (1 to 50 microns) by means of wavelength dependent resonance spectra. Measurements are performed on a single particle levitated in an electrical field. The particle is illuminated. Accuracy on the order of 1 Angstrom is expected. Besides the particle size, one can determine forces on particles in temperature and density gradients, evaporation and condensation rates, nucleation rates, and collection efficiencies. Measurement of micro-particle properties is important to many research area, such as manufacturing (superconductors, semiconductors, chemicals), weather (fog, mist, ozone, nuclear winter) and pollution control (smog, acid rain, radon).