Lynch David K, Dearborn David S P, Lock James A
Thule Scientific, Topanga, California 90290, USA.
Appl Opt. 2011 Oct 1;50(28):F39-49. doi: 10.1364/AO.50.000F39.
We present new observations of glitter and glints using short and long time exposure photographs and high frame rate videos. Using the sun and moon as light sources to illuminate the ocean and laboratory water basins, we found that (1) most glitter takes place on capillary waves rather than on gravity waves, (2) certain aspects of glitter morphology depend on the presence or absence of thin clouds between the light source and the water, and (3) bent glitter paths are caused by asymmetric wave slope distributions We present computer simulations that are able to reproduce the observations and make predictions about the brightness, polarization, and morphology of glitter and glints. We demonstrate that the optical catastrophe represented by creation and annihilation of a glint can be understood using both ray optics and diffraction theory.
我们使用短时间和长时间曝光照片以及高帧率视频展示了对微光和反光的新观测结果。利用太阳和月亮作为光源来照亮海洋和实验室水池，我们发现：（1）大多数微光出现在毛细波而非重力波上；（2）微光形态的某些方面取决于光源与水面之间是否存在薄云；（3）弯曲的微光路径是由不对称的波斜率分布引起的。我们展示了能够重现这些观测结果并对微光和反光的亮度、偏振和形态进行预测的计算机模拟。我们证明，由反光的产生和消失所代表的光学突变可以用射线光学和衍射理论来理解。
