УДК: 535.42

Analysis of the formation of a longitudinally polarized optical needle by a lens and axicon under tightly focused conditions

Publication in Journal of Optical Technology

For Russian citation (Opticheskii Zhurnal):

Хонина С.Н., Дегтярев С.А. Анализ формирования продольно-поляризованной световой иглы при острой фокусировке с помощью линзы и аксикона // Оптический журнал. 2016. Т. 83. № 4. С. 3–14.

Khonina S.N., Degtyarev S.A. Analysis of the formation of a longitudinally polarized optical needle by a lens and axicon under tightly focused conditions [in Russian] // Opticheskii Zhurnal. 2016. V. 83. № 4. P. 3–14.

For citation (Journal of Optical Technology):

S. N. Khonina and S. A. Degtyarev, "Analysis of the formation of a longitudinally polarized optical needle by a lens and axicon under tightly focused conditions," Journal of Optical Technology. 83(4), 197-205 (2016). https://doi.org/10.1364/JOT.83.000197

Abstract:

We analyze various techniques for producing a thin needle of light in which the electric field is longitudinally polarized. We consider the use of variously polarized laser beams tightly focused by a spherical lens or by large-aperture refractive or diffractive axicons. The simulations were performed using integral propagators and the numerical finite-element method. We show that a diffractive axicon is the best component for producing an elongated longitudinally polarized optical needle.

Keywords:

tight focusing, longitudinal electric field component, diffractive axicon, needle of light

Acknowledgements:

This work was performed with the financial support of the Russian Science Foundation (No. 14-19-00114).

OCIS codes: 050.1970, 260.1960, 260.5430

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