Publication detail

Simulation of optomechanical interaction of levitated nanoparticle with photonic crystal micro cavity

MAŇKA, T. ŠILER, M. LIŠKA,V. ZEMÁNEK, P. ŠERÝ, M. BRZOBOHATÝ, O.

Original Title

Simulation of optomechanical interaction of levitated nanoparticle with photonic crystal micro cavity

Type

journal article in Web of Science

Language

English

Original Abstract

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 particle -cavity 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.

Keywords

Light; Dymics; Optical trapping

Authors

MAŇKA, T.; ŠILER, M.; LIŠKA,V.; ZEMÁNEK, P.; ŠERÝ, M.; BRZOBOHATÝ, O.

Released

13. 2. 2024

Publisher

Optica Publishing Group

Location

WASHINGTON

ISBN

1094-4087

Periodical

OPTICS EXPRESS

Year of study

32

Number

5

State

United States of America

Pages from

7185

Pages to

7196

Pages count

12

URL

https://opg.optica.org/oe/fulltext.cfm?uri=oe-32-5-7185&id=546570

BibTex

@article{BUT197272,
  author="MAŇKA, T. and ŠILER, M. and LIŠKA,V. and ZEMÁNEK, P. and ŠERÝ, M. and BRZOBOHATÝ, O.",
  title="Simulation of optomechanical interaction of levitated nanoparticle with photonic crystal micro cavity",
  journal="OPTICS EXPRESS",
  year="2024",
  volume="32",
  number="5",
  pages="7185--7196",
  doi="10.1364/OE.515202",
  issn="1094-4087",
  url="https://opg.optica.org/oe/fulltext.cfm?uri=oe-32-5-7185&id=546570"
}