Generation of diffraction-free vectorial elliptic hollow beams with space-varying inhomogeneous polarizations.
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| Title: | Generation of diffraction-free vectorial elliptic hollow beams with space-varying inhomogeneous polarizations. |
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| Authors: | Li, Hui-Rong1 (AUTHOR) lhr-2000@163.com, Zhao, Peng-Yi1 (AUTHOR), Yin, Jian-Ping2 (AUTHOR) |
| Source: | Chinese Physics B. Aug2021, Vol. 30 Issue 8, p1-5. 5p. |
| Subjects: | Bose-Einstein condensation, Hollow fibers, Angular momentum (Mechanics), Nanoparticles |
| Abstract: | Diffraction-free vectorial elliptic hollow beams (vEHBs) are generated by an optical system composed of a short elliptic hollow fiber (EHF) and an axicon. Each beam has a closed elliptic annular intensity profile and space-varying polarization states in its diffraction-free distance of more than 1 m. The generated beams have a counter-clockwise or clockwise periodically-rotated inhomogeneous polarization. And the spin angular momentum (SAM) of the vEHBs is 1ℏ or –1ℏ which is consistent with the type of dual-mode in the EHF and the periodic polarization rotations of the vEHBs. The vEHBs have potential applications in optically trapping and micromanipulating the micro- or nano-particles, quantum information transmission, and Bose–Einstein condensates, etc. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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