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Simulation of optomechanical interaction of levitated nanoparticle with photonic crystal micro cavity
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SYSNO ASEP 0598699 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Simulation of optomechanical interaction of levitated nanoparticle with photonic crystal micro cavity Author(s) Maňka, Tadeáš (UPT-D) RID, ORCID, SAI
Šiler, Martin (UPT-D) RID, ORCID, SAI
Liška, Vojtěch (UPT-D) SAI
Zemánek, Pavel (UPT-D) RID, SAI, ORCID
Šerý, Mojmír (UPT-D) RID, SAI
Brzobohatý, Oto (UPT-D) RID, ORCID, SAINumber of authors 6 Source Title Optics Express. - : Optical Society of America - ISSN 1094-4087
Roč. 32, č. 5 (2024), s. 7185-7196Number of pages 12 s. Publication form Online - E Language eng - English Country US - United States Keywords Optical trapping ; photonic crystal cavity ; resonator ; finite difference time domain Subject RIV BH - Optics, Masers, Lasers OECD category Optics (including laser optics and quantum optics) R&D Projects EH22_008/0004649 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) GF21-19245K GA ČR - Czech Science Foundation (CSF) TN02000020 GA TA ČR - Technology Agency of the Czech Republic (TA ČR) Method of publishing Open access Institutional support UPT-D - RVO:68081731 UT WOS 001201953000004 EID SCOPUS 85186122431 DOI https://doi.org/10.1364/OE.515202 Annotation We propose and analyze theoretically a promising design of an optical trap for vacuum levitation of nanoparticles based on a one-dimensional (1D) silicon photonic crystal cavity (PhC). The considered cavity has a quadratically modulated width of the silicon wave guiding structure, leading to a calculated cavity quality factor of 8 x 105. An effective mode volume of approximately 0.16 mu m3 having the optical field strongly confined outside the silicon structure enables optical confinement on nanoparticle in all three dimensions. The optical forces and particlecavity optomechanical coupling are comprehensively analyzed for two sizes of silica nanoparticles (100 nm and 150 nm in diameter) and various mode detunings. The value of trapping stiffnesses in the microcavity is predicted to be 5 order of magnitudes higher than that reached for optimized optical tweezers, moreover the linear single photon coupling rate can reach MHz level which is 6 order magnitude larger than previously reported values for common bulk cavities. The theoretical results support optimistic prospects towards a compact chip for optical levitation in vacuum and cooling of translational mechanical degrees of motion for the silica nanoparticle of a diameter of 100 nm. Workplace Institute of Scientific Instruments Contact Martina Šillerová, sillerova@ISIBrno.Cz, Tel.: 541 514 178 Year of Publishing 2025 Electronic address https://opg.optica.org/oe/fulltext.cfm?uri=oe-32-5-7185&id=546570
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