Reconfigurable millimeter-range optical binding of dielectric microparticles in hollow-core photonic crystal fiber

Sharma A, Xie S, Russell PSJ (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Optics Letters Optical Society of America

Book Volume: 46

Pages Range: 3909-3912

Journal Issue: 16

DOI: 10.1364/OL.421885

Abstract

Optical binding of microparticles offers a versatile playground for investigating the optomechanics of levitated multi-particle systems. We report millimeter-range optical binding of polystyrene microparticles in hollow-core photonic crystal fiber. The first particle scatters the incident LP01 mode into several LP0n modes, creating a beat pattern that exerts a position-dependent force on the second particle. Particle binding results from the interplay of the forces created by counterpropagating beams. A femtosecond trapping laser is used so that group velocity walk-off eliminates disturbance caused by higher order modes accidentally excited at the fiber input. The inter-particle distance can be optically switched over 2 orders of magnitude (from 42 µm to 3 mm), and the bound particle pairs can be translated along the fiber by unbalancing the powers in the counterpropagating trapping beams. The frequency response of a bound particle pair is investigated at low gas pressure by driving with an intensity-modulated control beam. The system offers new degrees of freedom for manipulating the dynamics and configurations of optically levitated microparticle arrays.

Involved external institutions

Max-Planck-Institut für die Physik des Lichts (MPL) / Max Planck Institute for the Science of Light DE Germany (DE)

How to cite

APA:

Sharma, A., Xie, S., & Russell, P.S.J. (2021). Reconfigurable millimeter-range optical binding of dielectric microparticles in hollow-core photonic crystal fiber. Optics Letters, 46(16), 3909-3912. https://doi.org/10.1364/OL.421885

MLA:

Sharma, Abhinav, Shangran Xie, and Philip St. J. Russell. "Reconfigurable millimeter-range optical binding of dielectric microparticles in hollow-core photonic crystal fiber." Optics Letters 46.16 (2021): 3909-3912.

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