T. Ikeda, G. Popescu, R. R. Dasari, and M. S. Feld, Hilbert phase microscopy for investigating fast dynamics in transparent systems, Opt. Lett., 30, 1165 (2005).
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We introduce Hilbert phase microscopy (HPM) as a novel optical technique for measuring high transverse resolution quantitative phase images associated with optically transparent objects. Because of its singleshot nature, HPM is suitable for investigating rapid phenomena that take place in transparent structures such as biological cells. The potential of this technique for studying biological systems is demonstrated with measurements of red blood cells, and its ability to quantify dynamic processes on a millisecond scale is exemplified with measurements of evaporating micrometer-sized water droplets.
