Droplet optomechanics

作者：Dahan Raphael; Martin Leopoldo L; Carmon Tal^*

来源：Optica, 2016, 3(2): 175-178.

DOI：10.1364/OPTICA.3.000175

Unlike capillary resonance by Rayleigh (Proc. R. Soc. London 29, 71 (1879)) and optical resonance by Ashkin (Phys. Rev. Lett. 38, 1351 (1977)), acoustic resonance in fluid droplets has rarely been studied. Here we use droplets and optically excite and interrogate their acoustic resonances at a rate 1000 times faster than their capillary oscillation. We observe acoustical vibrations at 40 MHz that start at an optical threshold of 68 mu W. Their high optical quality factor suggests that droplets might also exhibit continuous-time optical nonlinearities and opto-capillary interactions. We believe that our work will enable photonic MEMS and droplet optomechanics in devices made strictly of liquid.

• 出版日期2016-2-20