Optomechanically induced transparency in diamond microdisks
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2017-06-01 |
| Authors | Matthew Mitchell, David P. Lake, John P. Hadden, Paul E. Barclay |
| Institutions | University of Calgary, National Institute for Nanotechnology |
Abstract
Section titled āAbstractāRecent demonstrations of single-crystal diamond cavity optomechanical devices [1] have made progress towards the realization of hybrid quantum technologies capable of controlling interactions between light, vibrations, and electron spins [2]. The microdisk structure studied here is advantageous due to the simple geometry, strong optomechanical coupling between high frequency mechanical resonances, and ability to support low loss optical modes [1]. We demonstrate optomechanically induced transparency (OMIT) in a single-crystal diamond microdisk fabricated from bulk diamond [1], an example of which is shown in Fig. 1(a). The device studied here exhibits dispersive optomechanical coupling between a TM-like optical whispering gallery mode with intrinsic quality factor of Q(i)o ~ 5 x 104 at Ī»o ~ 1.5 Ī¼m and a 2.4 GHz frequency (Ļm/2Ļ) mechanical radial breathing mode (RBM), as shown in Fig. 1(b). The OMIT scheme, outlined in Fig. 1(a) requires coupling both a strong control (Ļc), and weak probe field (Ļp) to the cavity optical resonance (Ļo). OMIT occurs when the control field is red-detuned from the cavity such that Īoc = Ļo - Ļc = Ļm. When Īpc = Ļp - Ļc = Ļm, a buildup of intracavity field photons is prevented, resulting in a transparency window in the probe transmission spectrum, and a dip in the probe reflection from the cavity [3].