Tailoring of spectral response and spatial field distribution with corrugated photonic crystal slab

We report a new physical mechanism for simultaneous tuning of quality factors, spectral responses, and field distributions in photonic crystal slabs through removal of polarization mode degeneracy using a lattice of elliptical nano-holes. The quality factors in these structures can become higher tha...

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Bibliographic Details
Published in:Optics letters 2015-08, Vol.40 (16), p.3715-3718
Main Authors: Gad, Raanan, Lau, Wah Tung, Nicholaou, Costa, Ahmadi, Soroosh, Sigal, Iliya, Levi, Ofer
Format: Article
Language:English
Subjects:
Corrugating
Lattice vibration
Microwaves
Nanostructure
Optical Devices
Photonic crystals
Photons
Quality factor
Silicon Dioxide
Slabs
Spectrum Analysis
Tuning
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Summary:We report a new physical mechanism for simultaneous tuning of quality factors, spectral responses, and field distributions in photonic crystal slabs through removal of polarization mode degeneracy using a lattice of elliptical nano-holes. The quality factors in these structures can become higher than those obtained with much smaller circular nano-holes. Furthermore, the modes can be superimposed by either rotating or morphing the elliptical nano-holes into a corrugated grating. These findings will enable improved radiation-matter interaction in optical, microwave, and THZ frequencies along with enhanced opto-acoustic coupling.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.40.003715