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 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.
Raanan
R
Gad
Wah Tung
WT
Lau
Costa
C
Nicholaou
Soroosh
S
Ahmadi
Iliya
I
Sigal
Ofer
O
Levi
D055096:Optical Devices; D017785:Photons; D012822:Silicon Dioxide; D013057:Spectrum Analysis
D012822:Silicon Dioxide