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arXiv 1012.2556physics.optics
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具有完全声子带隙的准二维光机械晶体

Quasi-two-dimensional optomechanical crystals with a complete phononic bandgap

Thiago P. Mayer Alegre, Amir Safavi-Naeini, Martin Winger, Oskar Painter

摘要:

在硅微芯片中形成的完全平面的二维光机械晶体用于创建在GHz频率范围内没有声子的结构。纳米级光子晶体腔被放置在声子带隙晶体内部,以便探测局部声学模式的特性。通过研究具有不同几何特性的结构阵列上的声共振的机械阻尼、模式密度和光机耦合强度的趋势,示出了完整的声子带隙的明确证据。

英文摘要:

A fully planar two-dimensional optomechanical crystal formed in a silicon microchip is used to create a structure devoid of phonons in the GHz frequency range. A nanoscale photonic crystal cavity is placed inside the phononic bandgap crystal in order to probe the properties of the localized acoustic modes. By studying the trends in mechanical damping, mode density, and optomechanical coupling strength of the acoustic resonances over an array of structures with varying geometric properties, clear evidence of a complete phononic bandgap is shown.

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。

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