论文标题

混合动力(AL)GAAS-LINBO $ _3 $表面声波谐振器用于空腔量子点光学机械

A Hybrid (Al)GaAs-LiNbO$_3$ Surface Acoustic Wave Resonator for Cavity Quantum Dot Optomechanics

论文作者

Nysten, Emeline D. S., Rastelli, Armando, Krenner, Hubert J.

论文摘要

包括A(Al)GAAS量子点异质结构和Linbo $ _3 $表面声波谐振器的混合设备由异性杂化制造。对于操作频率$ f \ 300 $ MHz,证明了高声质量因子$ q> 4000美元。测得的大质量因子频率产品$ q \ times f> 10^{12} $可确保由于温度超过$ t> 50 \,\ mathrm {k} $的热噪声而导致的矫正性。观察到单个量子点和谐振器模式的频率和位置依赖性的光力耦合。

A hybrid device comprising a (Al)GaAs quantum dot heterostructure and a LiNbO$_3$ surface acoustic wave resonator is fabricated by heterointegration. High acoustic quality factors $Q>4000$ are demonstrated for an operation frequency $f\approx 300$ MHz. The measured large quality factor-frequency products $Q\times f>10^{12}$ ensures the suppression of decoherence due to thermal noise for temperatures exceeding $T>50\,\mathrm{K}$. Frequency and position dependent optomechanical coupling of single quantum dots and the resonator modes is observed.

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