Formation of Inverse Energy Flux in the Case of Diffraction of Linearly Polarized Radiation by Conventional and Generalized Spiral Phase Plates
Recently, there has been increased interest in the shaping of light fields with an inverse energy flux to guide optically trapped nano- and microparticles towards a radiation source. To generate inverse energy flux, non-uniformly polarized laser beams, especially higher-order cylindrical vector beam...
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MDPI AG
2021-07-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/8/7/283 |
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doaj-124359cca18d4ee49d0f501572bc94572021-07-23T14:01:12ZengMDPI AGPhotonics2304-67322021-07-01828328310.3390/photonics8070283Formation of Inverse Energy Flux in the Case of Diffraction of Linearly Polarized Radiation by Conventional and Generalized Spiral Phase PlatesAndrey V. Ustinov0Svetlana N. Khonina1Alexey P. Porfirev2Image Processing Systems Institute—Branch of the Federal Scientific Research Centre, “Crystallography and Photonics” of Russian Academy of Sciences, 443001 Samara, RussiaImage Processing Systems Institute—Branch of the Federal Scientific Research Centre, “Crystallography and Photonics” of Russian Academy of Sciences, 443001 Samara, RussiaImage Processing Systems Institute—Branch of the Federal Scientific Research Centre, “Crystallography and Photonics” of Russian Academy of Sciences, 443001 Samara, RussiaRecently, there has been increased interest in the shaping of light fields with an inverse energy flux to guide optically trapped nano- and microparticles towards a radiation source. To generate inverse energy flux, non-uniformly polarized laser beams, especially higher-order cylindrical vector beams, are widely used. Here, we demonstrate the use of conventional and so-called generalized spiral phase plates for the formation of light fields with an inverse energy flux when they are illuminated with linearly polarized radiation. We present an analytical and numerical study of the longitudinal and transverse components of the Poynting vector. The conditions for maximizing the negative value of the real part of the longitudinal component of the Poynting vector are obtained.https://www.mdpi.com/2304-6732/8/7/283spiral phase plategeneralized spiral phase platepower-exponent phase platePoynting vectorinverse energy fluxpolarization |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Andrey V. Ustinov Svetlana N. Khonina Alexey P. Porfirev |
| spellingShingle |
Andrey V. Ustinov Svetlana N. Khonina Alexey P. Porfirev Formation of Inverse Energy Flux in the Case of Diffraction of Linearly Polarized Radiation by Conventional and Generalized Spiral Phase Plates Photonics spiral phase plate generalized spiral phase plate power-exponent phase plate Poynting vector inverse energy flux polarization |
| author_facet |
Andrey V. Ustinov Svetlana N. Khonina Alexey P. Porfirev |
| author_sort |
Andrey V. Ustinov |
| title |
Formation of Inverse Energy Flux in the Case of Diffraction of Linearly Polarized Radiation by Conventional and Generalized Spiral Phase Plates |
| title_short |
Formation of Inverse Energy Flux in the Case of Diffraction of Linearly Polarized Radiation by Conventional and Generalized Spiral Phase Plates |
| title_full |
Formation of Inverse Energy Flux in the Case of Diffraction of Linearly Polarized Radiation by Conventional and Generalized Spiral Phase Plates |
| title_fullStr |
Formation of Inverse Energy Flux in the Case of Diffraction of Linearly Polarized Radiation by Conventional and Generalized Spiral Phase Plates |
| title_full_unstemmed |
Formation of Inverse Energy Flux in the Case of Diffraction of Linearly Polarized Radiation by Conventional and Generalized Spiral Phase Plates |
| title_sort |
formation of inverse energy flux in the case of diffraction of linearly polarized radiation by conventional and generalized spiral phase plates |
| publisher |
MDPI AG |
| series |
Photonics |
| issn |
2304-6732 |
| publishDate |
2021-07-01 |
| description |
Recently, there has been increased interest in the shaping of light fields with an inverse energy flux to guide optically trapped nano- and microparticles towards a radiation source. To generate inverse energy flux, non-uniformly polarized laser beams, especially higher-order cylindrical vector beams, are widely used. Here, we demonstrate the use of conventional and so-called generalized spiral phase plates for the formation of light fields with an inverse energy flux when they are illuminated with linearly polarized radiation. We present an analytical and numerical study of the longitudinal and transverse components of the Poynting vector. The conditions for maximizing the negative value of the real part of the longitudinal component of the Poynting vector are obtained. |
| topic |
spiral phase plate generalized spiral phase plate power-exponent phase plate Poynting vector inverse energy flux polarization |
| url |
https://www.mdpi.com/2304-6732/8/7/283 |
| work_keys_str_mv |
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