Mini-band states in graded periodic 1D photonic superstructure

The shallow mini-band states have been clearly located in experiment in the graded periodic structure which was fabricated by the holography method. We demonstrated that the band edge folding and splitting into individual shallow levels are due to long-periodic modulation. Numerical simulations show...

Full description

Saved in:
Bibliographic Details
Published inApplied physics. B, Lasers and optics Vol. 107; no. 2; pp. 369 - 374
Main Authors Ying, C.-F., Zhou, W.-Y., Ye, Q., Li, Z.-B., Tian, J.-G.
Format Journal Article
LanguageEnglish
Published Berlin/Heidelberg Springer-Verlag 01.05.2012
Subjects
Engineering
Lasers
Optical Devices
Optics
Photonics
Physical Chemistry
Physics
Physics and Astronomy
Quantum Optics
Refractive Index Modulation
Couple Resonator Optical Waveguide
Mini Band
Group Velocity
Photonic Crystal
Online AccessGet full text

Cover

More Information
Summary:The shallow mini-band states have been clearly located in experiment in the graded periodic structure which was fabricated by the holography method. We demonstrated that the band edge folding and splitting into individual shallow levels are due to long-periodic modulation. Numerical simulations show strong slow-light effect and low second-order dispersion of mini bands. By taking into account the non-uniform distribution of the material, the numerical results agree quite well with the experimental results. To our knowledge, this is the first instance in which shallow mini-band states have been experimentally located in a graded periodic film via the holography method.
ISSN:0946-2171
1432-0649
DOI:10.1007/s00340-012-4940-x