Journal
OPTICS LETTERS
Volume 38, Issue 21, Pages 4469-4472Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.38.004469
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Funding
- German Research Foundation [TR 194/49-1]
- Graduate School of Computational Engineering
- Research Training Group GRK 1114 at the Technische Universit t Darmstadt
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A vector-ray tracing (VRT) model is employed to simulate optical caustic structures [in terms of rainbow and hyperbolic umbilic (HU) fringes] in the secondary rainbow region of light scattering from oblate droplets. The changes of the rainbow fringe and HU fringe in response to shape deformation of oblate droplets are investigated and the curvature of the rainbow fringe is calculated. Then the location of cusp caustics is calculated from VRT simulations and compared with analytic solutions. (C) 2013 Optical Society of America
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