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Controlling deformation in a high quality factor silica microsphere toward single directional emission

机译:控制高品质因子二氧化硅微球向单向发射的变形

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摘要

High-Q deformed silica microsphere cavities are fabricated by short CO_2 laser pulses, where the deformation is well controlled by adjusting the intensity and number of pulses. Using this method, directional emission from whispering-gallery mode (WGM) with a high quality factor of 10~7 in these microspheres is achieved, and a transition from two-directional to single-directional emission is observed. Such concentrated directional emission and high-Q of WGMs show high potential for future studies of the chaotic ray dynamics in deformed microcavity and cavity quantum electrodynamics and optomechanics.
机译:高Q变形的二氧化硅微球腔是通过短CO_2激光脉冲制造的,通过调节脉冲的强度和数量可以很好地控制变形。利用这种方法,在这些微球中实现了高质量因子为10〜7的耳语画廊模式(WGM)的定向发射,并且观察到了从双向发射到单向发射的转变。这种集中的定向发射和高Q值的WGM显示出了未来研究变形微腔中的混沌射线动力学以及腔量子电动力学和光力学的巨大潜力。

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