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Simple method for generation of vector beams using a small-angle birefringent beam splitter
- Source :
- Optics letters. 40(21)
- Publication Year :
- 2015
-
Abstract
- A simple and practical system for generation of vector beams with arbitrary polarization and complex-amplitude distributions is proposed. The system mainly consists of a scalar computer-generated hologram (CGH), a small-angle birefringent beam splitter (BBS), and a Fourier lens with a filtering aperture (FA). The CGH is placed in front of the Fourier lens. The BBS is inserted between the CGH and the Fourier lens. When the CGH specially designed according to the method described in this Letter is illuminated by a plane beam or a Gaussian beam, a desired vector beam can be obtained through the FA placed at the back focal plane of the Fourier lens. Because no coupling element and half-wave plate are to be placed between the CGH and the BBS, the extinction ratios of both the two orthogonal polarization components for the vector beam can be better than 10(-5) and so high-quality vector beams can be generated.
- Subjects :
- Physics
Birefringence
business.industry
Orthogonal polarization spectral imaging
Holography
Physics::Optics
Atomic and Molecular Physics, and Optics
law.invention
symbols.namesake
Cardinal point
Optics
Fourier transform
law
symbols
Physics::Accelerator Physics
business
Beam splitter
Beam (structure)
Gaussian beam
Subjects
Details
- ISSN :
- 15394794
- Volume :
- 40
- Issue :
- 21
- Database :
- OpenAIRE
- Journal :
- Optics letters
- Accession number :
- edsair.doi.dedup.....63f95bf0ee01adf5bd37c02e0abe7097