Optical supercavitation in soft-matter
arXiv:1008.2616 · doi:10.1103/PhysRevLett.105.118301
Abstract
We investigate theoretically, numerically and experimentally nonlinear optical waves in an absorbing out-of-equilibrium colloidal material at the gelification transition. At sufficiently high optical intensity, absorption is frustrated and light propagates into the medium. The process is mediated by the formation of a matter-shock wave due to optically induced thermodiffusion, and largely resembles the mechanism of hydrodynamical supercavitation, as it is accompanied by a dynamic phase-transition region between the beam and the absorbing material.
4 pages, 5 figures, revised version: corrected typos and references
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- Measurement of scaling laws for shock waves in thermal nonlocal media
- Subwavelength optical spatial solitons and three-dimensional localization in disordered ferroelectrics: towards metamaterials of nonlinear origin
- Optothermal nonlinearity of silica aerogel