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11 February 2011 Nanometric measurement of optical pressure deformation of fluid interface by digital holography
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Digital Holographic Microscopy produces quantitative phase analysis of a specimen with excellent optical precision. In the current study, this imaging method has been used to measure induced thermal lensing by optical excitation in the time-resolved regime with excellent agreement to model predictions. We have found that the thermal effect should not be dismissed when pursuing optical radiation pressure experiments, even when the media involved are transparent. We have developed a unified model and simulated methods of decoupling the two effects. The results of this study and simulations suggest that our near term goal of nanometric measurement of an optical pressure induced deformation will prove successful. Precise measurement of this phenomenon can be useful in determining physical properties of interfacial surfaces, such as surface tension, and characterizing physical properties of cellular structures.
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David C. Clark and Myung K. Kim "Nanometric measurement of optical pressure deformation of fluid interface by digital holography", Proc. SPIE 7908, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications VIII, 79080T (11 February 2011);

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