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Optics Letters

Optics Letters


  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 8 — Apr. 15, 2014
  • pp: 2459–2462

Generating a hexagonal lattice wave field with a gradient basis structure

Manish Kumar and Joby Joseph  »View Author Affiliations

Optics Letters, Vol. 39, Issue 8, pp. 2459-2462 (2014)

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We present a new, single-step approach for generating a hexagonal lattice wave field with a gradient local basis structure. We incorporate this by coherently superposing two (or more) hexagonal lattice wave fields, which differ in their basis structures. The basis of the resultant lattice wave field is highly dependent on the relative strengths of constituent wave fields, and a desired spatial modulation of basis structure is thus obtained by controlling the spatial modulation of relative strengths of constituent wave fields. The experimental realization of gradient lattice is achieved by using a phase-only spatial light modulator (SLM) in an optical 4f Fourier filter setup where the SLM is displayed with a numerically calculated gradient phase mask. The presented method is wavelength independent and is completely scalable, making it promising for microfabrication of corresponding structures.

© 2014 Optical Society of America

OCIS Codes
(090.2880) Holography : Holographic interferometry
(230.6120) Optical devices : Spatial light modulators
(160.5298) Materials : Photonic crystals

ToC Category:
Fourier Optics and Signal Processing

Original Manuscript: January 17, 2014
Revised Manuscript: March 11, 2014
Manuscript Accepted: March 18, 2014
Published: April 11, 2014

Manish Kumar and Joby Joseph, "Generating a hexagonal lattice wave field with a gradient basis structure," Opt. Lett. 39, 2459-2462 (2014)

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