Asymmetric Diffraction From Two-Component Optical Gratings Made Of Passive And Lossy Materials

Abstract

Diffraction with asymmetric enhancement and suppression, and alternating contrast for symmetric diffraction orders is demonstrated from planar two-component optical gratings made of passive/lossy materials. Simulations agree well with the experimental diffraction pattern of the fabricated sample. Our fabrication approach uses simple, standard planar micro/nano lithography employing one photoresist and one dye. No 3D profiling is needed. The phenomena is due to the left-right asymmetric material distribution in the periodic grating, which gives rise to non-reciprocal light coupling for diffraction to the positive and negative orders.

Publication Date

12-26-2016

Publication Title

Optics Express

Volume

24

Issue

26

Number of Pages

30164-30172

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1364/OE.24.030164

Socpus ID

85009385505 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85009385505

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