Strong angular dispersion using higher bands of planar silicon photonic crystals.
We present experimental evidence for strong angular dispersion in a planar photonic crystal (PC) structure by properly engineering the modes in the second PC band. We show that by using the second photonic band of a square lattice PC, angular dispersion of 4 degrees /nm can be achieved. We also show that major challenges in designing practical PC devices using second band modes can be addressed by engineering the lattice and adding input/output buffer stages designed to eliminate unwanted effects.
Momeni
Babak
B
School of Electrical and Computer Engineering, Georgia Institute of Technology, 777 Atlantic Dr NW, Atlanta, GA30332, USA. babak.momeni@osamember.org
Chamanzar
Maysamreza
M
Shah Hosseini
Ehsan
E
Askari
Murtaza
M
Soltani
Mohammad
M
Adibi
Ali
A
D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D008027:Light; D008420:Manufactured Materials; D008962:Models, Theoretical; D017785:Photons; D012542:Scattering, Radiation; D012825:Silicon / Q000737:chemistry*
D012825:Silicon