Resonant Optomechanics with a Vibrating Carbon Nanotube and a Radio-Frequency Cavity
Resonant Optomechanics with a Vibrating Carbon Nanotube and a Radio-Frequency Cavity
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DOI：
10.1103/physrevlett.117.170801
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发表时间：
2016-10-21
影响因子：
8.6
通讯作者：
Laird, E. A.
中科院分区：
文献类型：
--
作者：
Ares, N.;Pei, T.;Laird, E. A.
在光机械装置中，腔和谐振器之间的耦合可以通过将它们调谐到相同的频率来增加。我们研究了碳纳米管谐振器和作为空腔的射频槽电路之间的相互作用。在此谐振区，通过直流电压耦合腔和机械谐振腔，增强了真空光机耦合。利用腔体来检测纳米管的运动，我们观察并模拟了机械振荡和电子振荡之间的干扰。我们向下测量了机械环，并表明对系统的进一步改进可以在量子极限下测量机械运动。
In an optomechanical setup, the coupling between cavity and resonator can be increased by tuning them to the same frequency. We study this interaction between a carbon nanotube resonator and a radio-frequency tank circuit acting as a cavity. In this resonant regime, the vacuum optomechanical coupling is enhanced by the dc voltage coupling the cavity and the mechanical resonator. Using the cavity to detect the nanotube's motion, we observe and simulate interference between mechanical and electrical oscillations. We measure the mechanical ring down and show that further improvements to the system could enable the measurement of mechanical motion at the quantum limit.