Amir Safavi-Naeini, 'Lithium Niobate Nanomechanical Devices' | KNI Distinguished Seminar

On October 29, 2019, Professor Amir Safavi-Naeini (Stanford University) presented the KNI Distinguished Seminar on "Lithium Niobate Nanomechanical Devices: New classical and quantum opportunities".

Safavi-Naeini presents his lab's recent results on the fabrication of new devices in thin films of Lithium Niobate (LN). He discusses three results, each of which leverages LN's excellent optical and mechanical properties to realize unique functionality. He touches on his team’s approach to piezo-optomechanical modulation and tuning and explains how careful design of piezoelectric transducers can lead to enormous increases in device efficiency (e.g. V_pi = 0.02 V) and tunability (~5 nm/V cavity tuning). Lastly, Safavi-Naeini discusses how, when coupled with transmon qubits, lithium niobate nanomechanical crystals with 2-8 GHz resonances can be used to realize the strong dispersive regime of quantum acoustics, an important step towards realizing quantum acoustic processors.

The KNI Distinguished Seminar Series is a series hosted by The Kavli Nanoscience Institute where eminent scientists and thinkers with strong yet varied backgrounds in nanoscience and nanotechnology share their expertise with the Caltech community. The scopes of presentations may range from: recent outstanding scientific highlights/technological advancements, to innovative early-stage research developments, to broader cross-disciplinary topics that are relevant to nanoscience. Each seminar is recorded and posted to the KNI YouTube channel.

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