| Autor: |
Victoria Shkuratova, Galina Kostyuk, Maksim Sergeev, Elena Vikhrova |
| Jazyk: |
angličtina |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
IEEE Photonics Journal, Vol 11, Iss 5, Pp 1-12 (2019) |
| Druh dokumentu: |
article |
| ISSN: |
1943-0655 |
| DOI: |
10.1109/JPHOT.2019.2934761 |
| Popis: |
In this paper, the simple, reliable and efficient fabrication technology of spiral varying retarder (SVR) on Iceland spar for generating radially and azimuthally polarized beams from linearly polarized Gaussian beam for λ = 632.8 nm is shown. The SVR which consists of 20 sectors was made by laser-induced microplasma processing on plate area of 10 × 10 mm2 in less than 7 minutes. When placing the SVR between two quarter wave plates with orthogonal fast axes the registration of typical images of intensity distribution in the far field in four analyzer positions (0°, 45°, 90°, 135°) confirmed the SVR's ability to generate radially polarized vector optical field. It was also shown that the placing of a half-wave plate, the fast axis of which is oriented at 45° relative to the direction of x axis, allows to create an azimuthally polarized vector optical field. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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