Longitudinal fields of quantized Laguerre-Gaussian modes

Kayn A. Forbes; Dale Green; Garth A. Jones

doi:10.1117/12.2577515

5 March 2021 Longitudinal fields of quantized Laguerre-Gaussian modes

Kayn A. Forbes, Dale Green, Garth A. Jones

Proceedings Volume 11701, Complex Light and Optical Forces XV; 117010D (2021) https://doi.org/10.1117/12.2577515
Event: SPIE OPTO, 2021, Online Only

Abstract

Longitudinal fields of quantized Laguerre-Gaussian modes are derived, revealing their importance even for light that may be considered to be propagating in the paraxial regime. This is in contrast to unstructured laser light, e.g. a Gaussian beam, where the magnitude of longitudinal components only become important under strong-focusing of the source. The unique effects stem specifically from the optical angular momentum, both orbital and spin, of optical vortex light, and include spin-orbit interactions in freely-propagating circularly-polarized vortices in free-space. The contribution that longitudinal fields make to the rate of single-photon absorption is calculated, highlighting that for optical vortices they cannot be neglected in general.

Conference Presentation

Citation Download Citation

Kayn A. Forbes, Dale Green, and Garth A. Jones "Longitudinal fields of quantized Laguerre-Gaussian modes", Proc. SPIE 11701, Complex Light and Optical Forces XV, 117010D (5 March 2021); https://doi.org/10.1117/12.2577515

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