arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1302.1949physics.optics
收藏

微流体布里渊腔光学力学

Brillouin cavity optomechanics with microfluidic devices

Gaurav Bahl, Kyu Hyun Kim, Wonsuk Lee, Jing Liu, Xudong Fan, Tal Carmon

摘要:

腔光力学允许在微谐振器中的声子和光子模式的参数耦合,并且目前在各种各样的固态系统中进行研究。超流体光学力学被认为是实现超低光学和机械损耗的一条途径。然而,还没有关于非固相物质的光学力学实验的报道。光力学实验的直接液体浸没是具有挑战性的,因为声能简单地泄漏到设备周围的高阻抗液体。相反,在这里,我们将液体限制在中空谐振器内,从而能够在2 MHz至11,000 MHz的频率范围内光学激发机械回音壁模式(例如,在99 MHz时机械Q = 4700)。即使我们将流体粘度增加到高于血液粘度,振动也会持续。我们的设备能够利用液体进行光机械研究,而光通常从毛细管的外部干燥侧耦合,并且液体通过标准微流体入口提供。

英文摘要:

Cavity optomechanics allows the parametric coupling of phonon- and photon-modes in microresonators and is presently investigated in a broad variety of solid-state systems. Optomechanics with superfluids has been proposed as a path towards ultra-low optical- and mechanical-dissipation. However, there have been no optomechanics experiments reported with non-solid phases of matter. Direct liquid immersion of optomechanics experiments is challenging since the acoustic energy simply leaks out to the higher-impedance liquid surrounding the device. Conversely, here we confine liquids inside hollow resonators thereby enabling optical excitation of mechanical whispering-gallery modes at frequencies ranging from 2 MHz to 11,000 MHz (for example, with mechanical Q = 4700 at 99 MHz). Vibrations are sustained even when we increase the fluid viscosity to be higher than that of blood. Our device enables optomechanical investigation with liquids, while light is conventionally coupled from the outer dry side of the capillary, and liquids are provided by means of a standard microfluidic inlet.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑