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Title: Angular momentum of light in an optical nanofiber

Abstract

We show that light confined in a circularly polarized fundamental mode of a nanofiber has a finite angular momentum, with both spin and orbital components. We derive exact analytical expressions for the angular momentum and its spin and orbital components. We show that the spin component is dominant when the fiber radius is small or large compared to the light wavelength. For intermediate fiber radii, a substantial orbital component appears, which is absent in the two limits mentioned above. The orbital component is maximized when the fiber radius is about one-fourth of the light wavelength.

Authors:
;  [1];  [1];  [2]
  1. Department of Applied Physics and Chemistry, University of Electro-Communications, Chofu, Tokyo 182-8585 (Japan)
  2. (Russian Federation)
Publication Date:
OSTI Identifier:
20787317
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 73; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.73.053823; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; NANOSTRUCTURES; OPTICAL FIBERS; POLARIZATION; SPIN; VISIBLE RADIATION; WAVELENGTHS

Citation Formats

Kien, Fam Le, Hakuta, K., Balykin, V. I., and Institute of Spectroscopy, Troitsk, Moscow Region 142092. Angular momentum of light in an optical nanofiber. United States: N. p., 2006. Web. doi:10.1103/PHYSREVA.73.0.
Kien, Fam Le, Hakuta, K., Balykin, V. I., & Institute of Spectroscopy, Troitsk, Moscow Region 142092. Angular momentum of light in an optical nanofiber. United States. doi:10.1103/PHYSREVA.73.0.
Kien, Fam Le, Hakuta, K., Balykin, V. I., and Institute of Spectroscopy, Troitsk, Moscow Region 142092. Mon . "Angular momentum of light in an optical nanofiber". United States. doi:10.1103/PHYSREVA.73.0.
@article{osti_20787317,
title = {Angular momentum of light in an optical nanofiber},
author = {Kien, Fam Le and Hakuta, K. and Balykin, V. I. and Institute of Spectroscopy, Troitsk, Moscow Region 142092},
abstractNote = {We show that light confined in a circularly polarized fundamental mode of a nanofiber has a finite angular momentum, with both spin and orbital components. We derive exact analytical expressions for the angular momentum and its spin and orbital components. We show that the spin component is dominant when the fiber radius is small or large compared to the light wavelength. For intermediate fiber radii, a substantial orbital component appears, which is absent in the two limits mentioned above. The orbital component is maximized when the fiber radius is about one-fourth of the light wavelength.},
doi = {10.1103/PHYSREVA.73.0},
journal = {Physical Review. A},
number = 5,
volume = 73,
place = {United States},
year = {Mon May 15 00:00:00 EDT 2006},
month = {Mon May 15 00:00:00 EDT 2006}
}