Journal article

Efficient generation of Bessel beam arrays by means of an SLM

  • Bowman, R. School of Physics & Astronomy, SUPA, University of Glasgow, UK
  • Muller, Nicolas Department of Physics, University of Fribourg, Switzerland
  • Zambrana-Puyalto, X. QISS and Department of Physics & Astronomy, Macquarie University, Australia
  • Jedrkiewicz, O. CNISM and Università degli Studi dell’Insubria, Como, Italy
  • Trapani, P. Di CNISM and Università degli Studi dell’Insubria, Como, Italy
  • Padgett, M. J. School of Physics & Astronomy, SUPA, University of Glasgow, UK
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    07.12.2011
Published in:
  • The European Physical Journal - Special Topics. - 2011, vol. 199, no. 1, p. 159-166
English We use a Spatial Light Modulator (SLM) to produce arrays of Bessel beams by using multiple axicon phase-masks on the SLM. This approach utilises the whole of the SLM, rather than just a thin annular region (which is the case if the SLM is in the far-field of the generated Bessel beams). Using the whole SLM rather than just an annular region means that the required intensity on the SLM is an order of magnitude lower for a given power in the Bessel beams. Spreading the power over the whole SLM is important for high-power applications such as laser micromachining. We allow the axicons to overlap and interfere in the hologram, so the axial length of the Bessel beam core is maintained as we add more beams to the array. Published in the issue "STELLA: Experiments with Lasers and Laser Applications"
Faculty
Faculté des sciences et de médecine
Department
Physique
Language
  • English
Classification
Physics
License
License undefined
Identifiers
Persistent URL
https://folia.unifr.ch/unifr/documents/302160
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