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Opt Lett. 2004 Sep 1;29(17):1965-7.

Two-dimensional angular optical scattering patterns of microdroplets in the mid infrared with strong and weak absorption.

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  • 1Department of Applied Physics, Yale University, New Haven, Connecticut 06520, USA.


Two-dimensional angular optical scattering (TAOS) patterns of droplets composed of a mixture of H2O and D2O are detected in the mid infrared. First, a lens is used in the Abbé sine condition to collect a small solid angle of light, where the scattering pattern matches well numerical simulations based on Mie theory. Next, TAOS patterns from droplets spanning a large (approximately 27pi sr) solid angle are captured simultaneously at two wavelengths. The effects of absorption are evident in the patterns and are discernible without the need for curve matching by Mie theory.

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