Abstract

Engineering of photonic and omnidirectional band gaps has been demonstrated theoretically in one-dimensional photonic crystals (1-D-PCs) containing linearly graded and constant refractive index materials. The reflection spectra, photonic band gap spectra, reflection phase shift, and electric field distribution have been obtained by transfer matrix method in the 200–800 THz region. It has been found that the number of photonic bands increases with layers thickness. The omnidirectional band gap in a quarter-wave stacking arrangement of such PC has also been obtained. Results show that different constituted homogeneous layers can change the omnidirectional band gap remarkably. Moreover, we have demonstrated that photonic bandwidths can also be controlled by the contrast of initial and final refractive index of the graded layers.

© 2016 IEEE

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription