Embedding multiple nondiffracting defect sites in periodic lattice wavefield by optical phase engineering

Manish Kumar; Joby Joseph

doi:10.1117/1.JNP.8.083894

21 January 2014 Embedding multiple nondiffracting defect sites in periodic lattice wavefield by optical phase engineering

Manish Kumar, Joby Joseph

Author Affiliations +

Journal of Nanophotonics, Vol. 8, Issue 1, 083894 (January 2014). https://doi.org/10.1117/1.JNP.8.083894

Abstract

A periodic lattice wavefield with multiple nondiffracting negative defect sites at the desired locations is very useful in photonic crystal device fabrication and other applications. Such a nondiffracting wavefield was realized by coherently superposing periodic lattice wavefields with Bessel wavefields at each of the defect sites. The experimental verification was done by making use of a phase only spatial light modulator (SLM) in a basic 4f Fourier filtering geometry where the image to be displayed on the SLM was calculated by making use of phase engineering. Photonic crystals with very small periods are possible to be fabricated as the method is wavelength independent and completely scalable.

Citation Download Citation

Manish Kumar and Joby Joseph "Embedding multiple nondiffracting defect sites in periodic lattice wavefield by optical phase engineering," Journal of Nanophotonics 8(1), 083894 (21 January 2014). https://doi.org/10.1117/1.JNP.8.083894

Published: 21 January 2014

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