Related papers: Recoil heating of a dielectric particle illuminated by a linearly polarized plane wave within the Rayleigh regime

Recoil heating of a dielectric particle illuminated by a linearly polarized plane wave within the Rayleigh regime

URL: http://arxiv.org/abs/2404.12459v2
Date: Wed, 15 May 2024 13:22:59 GMT
Title: Recoil heating of a dielectric particle illuminated by a linearly polarized plane wave within the Rayleigh regime
Authors: Mohammad Ali Abbassi,
Abstract summary: We derive the fluctuating force acted upon the particle arising from the fluctuations of the electromagnetic fields. Recoil heating imposes fundamental limitations in levitated optomechanics.
Score: 0.0
License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
Abstract: We investigate the recoil heating phenomenon experienced by a dielectric spherical particle when it interacts with a linearly polarized plane wave within the Rayleigh regime. We derive the fluctuating force acted upon the particle arising from the fluctuations of the electromagnetic fields. Our derivations reveal that the spectral density of the fluctuating force along the propagation direction is $7\hbar \omega_0 P_{\mathrm{scat}}/5c^2$. Meanwhile, along the direction of the electric and magnetic fields, it is $\hbar \omega_0 P_{\mathrm{scat}}/5c^2$ and $2\hbar \omega_0 P_{\mathrm{scat}}/5c^2$, respectively. Here, $P_{\mathrm{scat}}$ denotes the power scattered by the particle, $\hbar\omega_0$ represents the energy of a photon, and $c$ is the speed of light. Recoil heating imposes fundamental limitations in levitated optomechanics, constraining the minimum temperatures achievable in cooling processes, the coherence time of the system, and the sensitivity of force measurements.

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