Size-dependent optical forces on dielectric microspheres in hollow core photonic crystal fibers

Anno: 2022

Autori: Kincaid P.S.; Porcelli A.; Neves A.A.R.; Arimondo E.; Camposeo A.; Pisignano D.; Ciampini D.

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

Abstract: Optical forces on microspheres inside hollow core photonic crystal fibers (HC-PCFs) are often predicted using a ray optics model, which constrains its validity based on wavelength and microsphere sizes. Here, we introduce a rigorous treatment of the electromagnetic forces based on the Lorenz-Mie theory, which involves analytical determination of beam shape coefficients for the optical modes of a HC-PCF. The method is more practicable than numerical approaches and, in contrast with ray optics models, it is not limited by system size parameters. Time of flight measurements of microspheres flying through the HC-PCF lead to results consistent with the Lorenz-Mie predictions.

Giornale/Rivista: OPTICS EXPRESS

Volume: 30 (14)      Da Pagina: 24407  A: 24420

Maggiori informazioni: H2020 Marie Sklodowska-Curie Actions (813367).
Parole chiavi: WHISPERING-GALLERY MODES; PARTICLE; LIGHT; SCATTERING; GUIDANCE; SENSORS; SPHERE
DOI: 10.1364/OE.458674

Citazioni: 4
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-09-08
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