Compound Vortex Metalens with Linearly Polarized Encryption. Issue 2 (12th January 2023)
- Record Type:
- Journal Article
- Title:
- Compound Vortex Metalens with Linearly Polarized Encryption. Issue 2 (12th January 2023)
- Main Title:
- Compound Vortex Metalens with Linearly Polarized Encryption
- Authors:
- Zhou, Changda
Lu, Peiyao
Yue, Zhiyuan
Xu, Jilian
Teng, Shuyun - Abstract:
- Abstract: In view of the rapid development of nano‐fabrication technology and the wide application of composite vortex fields, a kind of compound vortex metalens with polarization encryption is proposed. The proposed compound vortex metalens can simultaneously generate compound vortex beams with double annular strengths, unequal topological charges, and specific polarization states in different radial regions, which have the characteristic of higher dimensional singularity. The compound vortex metalens consisting of rectangular nanoholes works under linearly polarized light illumination, and the topological charges of the generated compound vortex beam can be modulated through rotating nanoholes. Simulation results and theoretical analysis verify the reliability of polarization‐coded compound vortex beam metalens. The variation of polarized encrypted transmission field with the incident polarized angle shows the broader performance of polarization encryption compound vortex metalens. The multiple singularities and polarization encryption properties of the generated compound vortex beams combining with the integrated metasurface will be helpful for broadening the applications of singular beams. Abstract : Here, a compound vortex metalens is proposed, which can simultaneously generate compound vortex beams with multiple annular intensities, topological charges, and specific polarization states in different radial regions. These compound vortex beams have high dimensionsAbstract: In view of the rapid development of nano‐fabrication technology and the wide application of composite vortex fields, a kind of compound vortex metalens with polarization encryption is proposed. The proposed compound vortex metalens can simultaneously generate compound vortex beams with double annular strengths, unequal topological charges, and specific polarization states in different radial regions, which have the characteristic of higher dimensional singularity. The compound vortex metalens consisting of rectangular nanoholes works under linearly polarized light illumination, and the topological charges of the generated compound vortex beam can be modulated through rotating nanoholes. Simulation results and theoretical analysis verify the reliability of polarization‐coded compound vortex beam metalens. The variation of polarized encrypted transmission field with the incident polarized angle shows the broader performance of polarization encryption compound vortex metalens. The multiple singularities and polarization encryption properties of the generated compound vortex beams combining with the integrated metasurface will be helpful for broadening the applications of singular beams. Abstract : Here, a compound vortex metalens is proposed, which can simultaneously generate compound vortex beams with multiple annular intensities, topological charges, and specific polarization states in different radial regions. These compound vortex beams have high dimensions singularity. The two encryption factors significantly improve the information security and the multi‐topology of the compound vortex beam also increases the encrypted information capacity. … (more)
- Is Part Of:
- Annalen der Physik. Volume 535:Issue 2(2023)
- Journal:
- Annalen der Physik
- Issue:
- Volume 535:Issue 2(2023)
- Issue Display:
- Volume 535, Issue 2 (2023)
- Year:
- 2023
- Volume:
- 535
- Issue:
- 2
- Issue Sort Value:
- 2023-0535-0002-0000
- Page Start:
- n/a
- Page End:
- n/a
- Publication Date:
- 2023-01-12
- Subjects:
- metasurfaces -- orbital angular momentum -- singular optics -- structured light
Physics -- Periodicals
Chemistry -- Periodicals
530.05 - Journal URLs:
- http://onlinelibrary.wiley.com/ ↗
- DOI:
- 10.1002/andp.202200388 ↗
- Languages:
- English
- ISSNs:
- 0003-3804
- Deposit Type:
- Legaldeposit
- View Content:
- Available online (eLD content is only available in our Reading Rooms) ↗
- Physical Locations:
- British Library DSC - 0912.000000
British Library DSC - BLDSS-3PM
British Library STI - ELD Digital store - Ingest File:
- 25975.xml