Title :
GRIN-like dielectric slab lens through effective index engineering
Author :
Melkonyan, H. ; Dahlem, Marcus S.
Author_Institution :
Nano-Opt. & Optoelectron. Res. Lab., Masdar Inst., Abu Dhabi, United Arab Emirates
Abstract :
A GRIN-like dielectric slab lens has been studied through 2D FDTD simulations. The focusing structure can be described as a thin dielectric slab with sub-wavelength index engineering, formed by air gaps (or filled with a different refractive index material) of identical sizes. The concentration of the number of gaps varies radially and makes the dielectric slab a smoothly graded-index media, which gives it focusing or diverging properties.
Keywords :
air gaps; finite difference time-domain analysis; gradient index optics; lenses; optical focusing; 2D FDTD simulations; GRIN like dielectric slab lens; air gaps; effective index engineering; graded index media; optical focusing; subwavelength index engineering; thin dielectric slab; Finite difference methods; Focusing; Lenses; Photonics; Time domain analysis; GRIN lens; dielectric slab lens;
Conference_Titel :
Photonics Global Conference (PGC), 2012
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-2513-4
DOI :
10.1109/PGC.2012.6458059
