Optically cooling a room-temperature nanomechanical membrane resonator close to its quantum ground state
Publikation: Bidrag til bog/antologi/rapport › Konferencebidrag i proceedings › Forskning › fagfællebedømt
We present a new optomechanical cavity design, comprising a fiber mirror and a mirror featuring a silicon phononic crystal structure on its backside, termed the "exoskeleton". The fiber mirror's small mass pushes the frequencies of its vibrational modes above that of the mode of interest, while the exoskeleton structure creates a bandgap in the spectrum of the latter mirror, engineered to be centered around the mode of interest. The mechanical mode of interest is a vibrational mode of a "soft-clamped"SiN membrane resonator, exhibiting quality factors well in excess of 100 million at room temperature. Owing to its high quantum cooperativity and low mirror noise, we are able to use the optomechanical system to make an efficient and strong optical measurement of the motion of this mode and feedback-cool it to below 20 phonons at room temperature.
Originalsprog | Engelsk |
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Titel | 2022 45th Jubilee International Convention on Information, Communication and Electronic Technology, MIPRO 2022 - Proceedings |
Redaktører | Neven Vrcek, Marko Koricic, Vera Gradisnik, Karolj Skala, Zeljka Car, Marina Cicin-Sain, Snjezana Babic, Vlado Sruk, Dejan Skvorc, Alan Jovic, Stjepan Gros, Boris Vrdoljak, Mladen Mauher, Edvard Tijan, Tihomir Katulic, Juraj Petrovic, Tihana Galinac Grbac, Benjamin Kusen |
Antal sider | 4 |
Forlag | Institute of Electrical and Electronics Engineers Inc. |
Publikationsdato | 23 maj 2022 |
Sider | 215-218 |
ISBN (Elektronisk) | 9789532331035 |
DOI | |
Status | Udgivet - 23 maj 2022 |
Begivenhed | 45th Jubilee International Convention on Information, Communication and Electronic Technology, MIPRO 2022 - Opatija, Kroatien Varighed: 23 maj 2022 → 27 maj 2022 |
Konference
Konference | 45th Jubilee International Convention on Information, Communication and Electronic Technology, MIPRO 2022 |
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Land | Kroatien |
By | Opatija |
Periode | 23/05/2022 → 27/05/2022 |
Sponsor | et al., Hrvatska Elektroprivreda, InfoDom, King ICT, Koncar - Electrical Industry, Storm Group |
Navn | 2022 45th Jubilee International Convention on Information, Communication and Electronic Technology, MIPRO 2022 - Proceedings |
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Bibliografisk note
Funding Information:
This work was supported by the European Research Council projects Q-CEOM (grant no. 638765) and PHOQS (grant no. 101002179), the Danish National Research Foundation (Center of Excellence “Hy-Q”), the Independent Research Fund Denmark (grant no. 1026-00345B), the Novo Nordisk Foundation (grant no. NNF20OC0061866) as well as the Swiss National Science
Funding Information:
Foundation (grant no. 177198). The project has furthermore received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No. 722923 (Marie Curie ETN – OMT).
Publisher Copyright:
© 2022 Croatian Society MIPRO.
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