Partially Coherent, Radially Polarized Beam with Annular Apodization
Based on the vectorial Debye theory, the tight focusing properties of partially coherent, radially polarized vortex beams are investigated in detail. In this paper, we propose to use an amplitude modulated filter in combination with a high NA lens to generate long focal depth in the focal region. Nu...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2014-01-01
|
| Series: | The Scientific World Journal |
| Online Access: | http://dx.doi.org/10.1155/2014/160945 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832553228372279296 |
|---|---|
| author | C. Mariyal P. Suresh K. B. Rajesh T. V. S. Pillai |
| author_facet | C. Mariyal P. Suresh K. B. Rajesh T. V. S. Pillai |
| author_sort | C. Mariyal |
| collection | DOAJ |
| description | Based on the vectorial Debye theory, the tight focusing properties of partially coherent, radially polarized vortex beams are investigated in detail. In this paper, we propose to use an amplitude modulated filter in combination with a high NA lens to generate long focal depth in the focal region. Numerical results show that the generation of long focal depth of FWHM (22.08λ) is achieved, which finds useful application in microscopy techniques such as particle acceleration, laser processing, optical micromanipulation, and beam shaping. |
| format | Article |
| id | doaj-art-e46c1440933a431bbd9c5bc5ca10897a |
| institution | Kabale University |
| issn | 2356-6140 1537-744X |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | The Scientific World Journal |
| spelling | doaj-art-e46c1440933a431bbd9c5bc5ca10897a2025-02-03T05:54:40ZengWileyThe Scientific World Journal2356-61401537-744X2014-01-01201410.1155/2014/160945160945Partially Coherent, Radially Polarized Beam with Annular ApodizationC. Mariyal0P. Suresh1K. B. Rajesh2T. V. S. Pillai3Department of ECE, National College of Engineering, Tirunelveli, Tamilnadu 627007, IndiaDepartment of ECE, National College of Engineering, Tirunelveli, Tamilnadu 627007, IndiaDepartment of Physics, Chikkanna Government Arts College, Tirupur, Tamilnadu 641602, IndiaDepartment of Physics, University College of Engineering, Nagercoil, Tamilnadu 629002, IndiaBased on the vectorial Debye theory, the tight focusing properties of partially coherent, radially polarized vortex beams are investigated in detail. In this paper, we propose to use an amplitude modulated filter in combination with a high NA lens to generate long focal depth in the focal region. Numerical results show that the generation of long focal depth of FWHM (22.08λ) is achieved, which finds useful application in microscopy techniques such as particle acceleration, laser processing, optical micromanipulation, and beam shaping.http://dx.doi.org/10.1155/2014/160945 |
| spellingShingle | C. Mariyal P. Suresh K. B. Rajesh T. V. S. Pillai Partially Coherent, Radially Polarized Beam with Annular Apodization The Scientific World Journal |
| title | Partially Coherent, Radially Polarized Beam with Annular Apodization |
| title_full | Partially Coherent, Radially Polarized Beam with Annular Apodization |
| title_fullStr | Partially Coherent, Radially Polarized Beam with Annular Apodization |
| title_full_unstemmed | Partially Coherent, Radially Polarized Beam with Annular Apodization |
| title_short | Partially Coherent, Radially Polarized Beam with Annular Apodization |
| title_sort | partially coherent radially polarized beam with annular apodization |
| url | http://dx.doi.org/10.1155/2014/160945 |
| work_keys_str_mv | AT cmariyal partiallycoherentradiallypolarizedbeamwithannularapodization AT psuresh partiallycoherentradiallypolarizedbeamwithannularapodization AT kbrajesh partiallycoherentradiallypolarizedbeamwithannularapodization AT tvspillai partiallycoherentradiallypolarizedbeamwithannularapodization |