Four new phosphites/phosphate, namely, Al[P2O3(OH)3](H2O), Al[(HPO3)(OH)(H2O)], Ca[HPO3] and Al3P6O19.5, were designed and synthesized by low temperature flux methods. They crystallized in P63mc, P-1, P43212, and P63/m space groups, respectively. The...

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Dissipative couplings between solid-cavity optomechanical oscillators provide an underlying mechanism for many physical phenomena, such as level attraction, non-Hermitian parity-time-symmetric, and topological energy transfer with exceptional points (EPs). Until now, cavity optomechanical mode couplings on different phases of material have not been demonstrated. Here, we report the experimental demonstration of optomechanical mode dissipative coupling, mediated by high-quality-factor photon whispering-gallery modes, between a solid surface wave mode (SWM) and a liquid radial breathing mode (RBM), both of which coexist in an optofluidic microbubble resonator consisting of silica layer and liquid metal core. The resonant frequencies of solid-SWM and liquid-RBM depend mainly on the physical parameters of the silica and liquid metal, respectively. These physical parameters are all related to the microcavity temperature, which can be electrically controlled by wiring the liquid metal to a circuit. The dissipative level attraction between the solid-SWM and liquid-RBM is achieved by changing the current applied to the liquid metal. Our results open new avenues toward exploring topological energy transfer between solid and liquid materials or ultrasensitive biological sensing around EPs.

In recent years, multicolor lasers have shown high potential for applications in many fields, such as white light source generation, biosensor or bioimaging, and optical communication, etc. Here, we use an optofluidic microbubble resonator (OFMBR) filled with a highly nonlinear liquid to obtain multicolor stimulated scatterings. By filling OFMBR with carbon disulfide and pumping it with nanosecond pulsed laser, a broadband visible supercontinuum spanning from 532 nm to 630 nm is generated due to the stimulated Raman scattering and stimulated Raman-Kerr scattering. This study opens the way towards potential application of multicolor or white light generation using optical nonlinear liquids.