Ohmic thermal tuning optomechanical modes of optofluidic microbubble resonator

Junqiang Guo; Lingqin Liao; Ya Hu; Quanwei Chen; Xianlin Liu; Qijing Lu; Shusen Xie

doi:10.1117/12.2603835

31 August 2021 Ohmic thermal tuning optomechanical modes of optofluidic microbubble resonator

Junqiang Guo, Lingqin Liao, Ya Hu, Quanwei Chen, Xianlin Liu, Qijing Lu, Shusen Xie

Proceedings Volume 11907, Sixteenth National Conference on Laser Technology and Optoelectronics; 119073A (2021) https://doi.org/10.1117/12.2603835
Event: Sixteenth National Conference on Laser Technology and Optoelectronics, 2021, Shanghai, China

Abstract

We fabricated an opto-mechano-fluidic microbubble resonator (MBR) consisting of a dielectric silica shell and liquid metal core. Benefiting from the conductivity of the liquid metal GaInSn, Ohmic heating was carried out for the MBR by applying current to the liquid metal to change the temperature of the MBR. Optical whispering gallery mode (WGM) and the optomechanical surface wave mode were tuned mainly because the Ohmic heating changed the refractive index and the Young's modulus of the silica, respectively. The optomechanical radial breathing mode was tuned mainly because the Ohmic heating changed the velocity and density of the liquid metal GaInSn. In our experiment, the WGM mode was tuned approximately 1.22 nm. The optomechanical surface wave mode and radial breathing mode were tuned approximately 0.30 MHz and 0.23 MHz, respectively.

Citation Download Citation

Junqiang Guo, Lingqin Liao, Ya Hu, Quanwei Chen, Xianlin Liu, Qijing Lu, and Shusen Xie "Ohmic thermal tuning optomechanical modes of optofluidic microbubble resonator", Proc. SPIE 11907, Sixteenth National Conference on Laser Technology and Optoelectronics, 119073A (31 August 2021); https://doi.org/10.1117/12.2603835

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KEYWORDS

Liquids

Metals

Optical microcavities

Resonators

Silica

Optofluidics

Microfluidics

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