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Proceedings Paper

3D femtosecond laser printing for angular momentum generators (Conference Presentation)
Author(s): Xuewen Wang

Paper Abstract

We propose to use femtosecond laser direct writing technique to realise dielectric optical elements from photo-resist materials for the generation of structured light from purely spin-orbital conversion transformations. This is illustrated by the fabrication and characterisation of spin-orbital optical angular momentum couplers generating optical vortices of topological charge from 1 to 20. The elements achieved using this techniques also were demonstrated its capabilities to working in the whole visible range with efficiency up to 85%. We also firstly demonstrated the abilities to combine the dynamic phase and geometric phase using the 3D fabrication capability of laser direct writing to create elements that generate different topological charges of optical vortices simultaneously with the shared aperture.

Paper Details

Date Published: 29 September 2017
Proc. SPIE 10344, Nanophotonic Materials XIV, 103440A (29 September 2017); doi: 10.1117/12.2277104
Show Author Affiliations
Xuewen Wang, Swinburne Univ. of Technology (Australia)

Published in SPIE Proceedings Vol. 10344:
Nanophotonic Materials XIV
Stefano Cabrini; Gilles Lérondel; Adam M. Schwartzberg; Taleb Mokari, Editor(s)

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