Nonlinear laser-induced deformations of liquid-liquid interfaces: An optical fiber model

摘要: Experimentally, it turns out that radiation forces from a cw laser on liquid-liquid interface are able to produce giant deformations (up about 100 microm), if the system is close critical point where surface tension becomes small. We present model for such fingerlike deformation, implying described as an optical fiber. One reason introducing refractive index difference in modern experiments, those of Bordeaux group, small, same order practical fibers optics. It natural therefore adopt hybrid HE11 mode, known fiber theory fundamental mode liquid system. show how balance between hydrodynamical and leads stable equilibrium column. Also, we calculate narrowing column radius depth increases. Comparison with experimental results group yields quite satisfactory agreement regards width.