Bonaldi Michele, Borrielli Antonio, Di Giuseppe Giovanni, Malossi Nicola, Morana Bruno, Natali Riccardo, Piergentili Paolo, Sarro Pasqualina Maria, Serra Enrico, Vitali David
Institute of Materials for Electronics and Magnetism, Nanoscience-Trento-FBK Division, 38123 Povo, TN, Italy.
Istituto Nazionale di Fisica Nucleare, TIFPA, 38123 Povo, TN, Italy.
Entropy (Basel). 2023 Jul 19;25(7):1087. doi: 10.3390/e25071087.
In this work, we present an Opto-Electro-Mechanical Modulator (OEMM) for RF-to-optical transduction realized via an ultra-coherent nanomembrane resonator capacitively coupled to an rf injection circuit made of a microfabricated read-out able to improve the electro-optomechanical interaction. This device configuration can be embedded in a Fabry-Perot cavity for electromagnetic cooling of the LC circuit in a dilution refrigerator exploiting the opto-electro-mechanical interaction. To this aim, an optically measured steady-state frequency shift of 380 Hz was seen with a polarization voltage of 30 V and a -factor of the assembled device above 106 at room temperature. The rf-sputtered titanium nitride layer can be made superconductive to develop efficient quantum transducers.
在这项工作中，我们展示了一种光机电调制器（OEMM），用于通过超相干纳米膜谐振器实现射频到光的转换，该谐振器电容耦合到由微加工读出制成的射频注入电路，能够改善电光机械相互作用。这种器件配置可以嵌入法布里 - 珀罗腔中，利用光机电相互作用在稀释制冷机中对LC电路进行电磁冷却。为此，在室温下，施加30 V的极化电压时，观察到光学测量的稳态频移为380 Hz，组装器件的品质因数高于10^6。射频溅射的氮化钛层可以制成超导的，以开发高效的量子换能器。
