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Applied Physics Letters / Volume 97 / Issue 21 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 97, 211108 (2010); http://dx.doi.org/10.1063/1.3517519 (3 pages)

Photopolymerized microscopic vortex beam generators: Precise delivery of optical orbital angular momentum

Etienne Brasselet1, Mangirdas Malinauskas2, Albertas Žukauskas2, and Saulius Juodkazis3

1Centre de Physique Moléculaire Optique et Hertzienne, Université Bordeaux 1, CNRS, 351 Cours de la Libération, 33405 Talence Cedex, France
2Department of Quantum Electronics, Laser Nanophotonics Group, Physics Faculty, Vilnius University, Saulėtekio 9, LT-10222 Vilnius, Lithuania
3Centre for Micro-Photonics, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, Hawthorn, VIC 3122, Australia

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(Received 22 September 2010; accepted 25 October 2010; published online 23 November 2010)

Direct femtosecond laser photopolymerization is used to fabricate high resolution microscopic spiral phase plates. The total phase change all around their center is prepared to be a integer multiple of 2π for the operating wavelength in the visible domain. The optical performances of the spiral plates are measured and we propose a simple single beam interferometric technique to characterize the phase singularity of the generated vortex beams. The experimental results are compared to simulations and a satisfying agreement is obtained. Potential of large scale fabrication, templating, and smart spiral plate architectures are also illustrated.

© 2010 American Institute of Physics

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KEYWORDS and PACS

Keywords

angular momentum, high-speed optical techniques, laser beam applications, light interferometry, micro-optics, optical fabrication, optical resolving power, optical retarders, optical vortices, polymerisation

PACS

  • 42.79.Ci

    Filters, zone plates, and polarizers

  • 42.65.Re

    Ultrafast processes; optical pulse generation and pulse compression

  • 07.60.Ly

    Interferometers

  • 42.62.-b

    Laser applications

  • 42.86.+b

    Optical workshop techniques

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3517519

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    D. Wu, S. -Z. Wu, L. -G. Niu, Q. -D. Chen, R. Wang, J. -F. Song, H. -H. Fang, and H. -B. Sun, Appl. Phys. Lett. 97, 031109 (2010)APPLAB000097000003031109000001.

    L. Allen, M. W. Beijersbergen, R. J. C. Spreeuw, and J. P. Woerdman, Phys. Rev. A 45, 8185 (1992).

    J. Courtial, K. Dholakia, D. A. Robertson, L. Allen, and M. J. Padgett, Phys. Rev. Lett. 80, 3217 (1998).


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