Low-order-mode optical trapping of microspheres in hollow-core photonic crystal fibers

Year: 2025

Authors: Porcelli A., Kincaid PS., Neves A.A.R., Arimondo E., Camposeo A., Pisignano D., Ciampini D.

Autors Affiliation: Univ Pisa, Dipartimento Fis E Fermi, Largo B Pontecorvo 3, I-56127 Pisa, Italy; Univ Fed ABC, Ave Estados 5001, BR-09210580 Santo Andre, Brazil; INO CNR, Via G Moruzzi 1, I-56124 Pisa, Italy; Ist Nanosci, NEST, CNR, Piazza S Silvestro 12, I-56127 Pisa, Italy; Scuola Normale Super Pisa, Piazza S Silvestro 12, I-56127 Pisa, Italy; Scuola Super Sant Anna, I-56124 Pisa, Italy.

Abstract: Hollow-core photonic crystal fibers (HC-PCFs) are a highly appealing tool for the optical trapping of micron-sized dielectric probes. Indeed, controlling the optical modes of HC-PCFs through diffractive spatial light modulators might lead to generate specific and accurate three-dimensional traps. Here, optical traps suitable for controlling dielectric nano-and microspheres using near-infrared wavelengths inside a HC-PCF are analyzed in depth, through a generalized Lorenz-Mie theory approach. The method provides an accurate and enhanced description of versatile trapping configurations, including optical conveyor belts. The applications of these trapping techniques can be various and important, including the development of optical sensors based on the light-matter interaction in the core.

Journal/Review: PHYSICAL REVIEW A

Volume: 111 (6)      Pages from: 63511-1  to: 63511-8

More Information: The authors thank Leonardo Vicarelli and Michele Cardelli for the SEM measurements and SEM sample preparation. A.C. and D.P. acknowledge the support of the European Union-Next Generation EU, Mission 4 Component 2 Inv. 1.5 CUP I53C22000780001 and B83C22003930001 (Tuscany Health Ecosystem, Spoke 4: Nanotechnologies for diagnosis and therapy) , for the SEM imaging of hollow-core fibers. CISUP-Centre for Instrumentation Sharing, University of Pisa, is also kindly acknowledged for the access to the SEM facility.
KeyWords: Particles
DOI: 10.1103/PhysRevA.111.063511