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Journal of Nanophotonics

Embedding multiple nondiffracting defect sites in periodic lattice wavefield by optical phase engineering
Author(s): Manish Kumar; Joby Joseph
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Paper 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.

Paper Details

Date Published: 21 January 2014
PDF: 10 pages
J. Nanophoton. 8(1) 083894 doi: 10.1117/1.JNP.8.083894
Published in: Journal of Nanophotonics Volume 8, Issue 1
Show Author Affiliations
Manish Kumar, Indian Institute of Technology Delhi (India)
Joby Joseph, Indian Institute of Technology Delhi (India)

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