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Opt Lett. 2008 Mar 1;33(5):515-7.

Two-dimensional liquid crystal laser array.

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  • 1Department of Engineering, Centre of Molecular Materials for Photonics and Electronics (CMMPE), University of Cambridge, Cambridge, UK.

Abstract

A two-dimensional liquid crystal (LC) laser array has been demonstrated by photopumping a single LC sample using a lenslet array consisting of plano-convex microlenses. A 5 x 5 array of LC lasers (displaying evidence of mutual coherence) spaced by 1 mm inactive regions has been generated, which could be combined to yield a single monomode output and allows an almost 50-fold increase in energy density in comparison to a single-focus LC cavity. Furthermore, we have demonstrated how the individual and recombined emission spectra vary with different sample topologies and how polydomain samples can be used to generate a multiwavelength laser emission.

PMID:
18311310
[PubMed]
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