Optomechanically induced transparency in diamond microdisks

Lake, David P., Mitchell, Matthew, Hadden, John P. ORCID: https://orcid.org/0000-0001-5407-6754 and Barclay, Paul E. 2017. Optomechanically induced transparency in diamond microdisks. Presented at: 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), Munich, Germany, 25-29 June 2017. 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 10.1109/CLEOE-EQEC.2017.8087082

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Abstract

Recent 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 λo ~ 1.5 μm and a 2.4 GHz frequency (ωm/2π) 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 (ωc), and weak probe field (ωp) to the cavity optical resonance (ωo). OMIT occurs when the control field is red-detuned from the cavity such that Δoc = ωo - ωc = ωm. When Δpc = ωp - ωc = ωm, 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].

Item Type:	Conference or Workshop Item (Paper)
Date Type:	Published Online
Status:	Published
Schools:	Schools > Physics and Astronomy
Publisher:	IEEE
ISBN:	9781509067374
Date of Acceptance:	25 June 2017
Last Modified:	23 Oct 2022 13:55
URI:	https://orca.cardiff.ac.uk/id/eprint/112108

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