Their are number of solitons are possible in photonic crystals. Some of them are available in literature.
I don't think any kind of solitons can happen in photonic crystals, because solitons require non-linear medium and photonic crystals are from linear physics.
I fully agree with Vincent and Igors' interpretation is wrong. There can be different types of solitons. It totally depends on how the PC material is tuned. Solitons can be tailored to propagate inside the PC by adapting the non linearity of it. There are extensive theoretical as well as practical demonstrations.
Vincent is right! The most important is that non-linear effects come from the material nature.
As far as I know, tranditional solitons are generated in negative dispersion region; stretched soliton are generated by the means of dispersion management; dissipated solitons are generated in all positive dispersion region; similaritons are evolved through a piece of active fiber or a piece of passive fiber which have positive dispersion.
To be a photonic crystal the material should be linear. Photonic crystal is an artificial structure with an optical forbidden band. If the material is not linear the band analysis is not valid.
Photonic crystal is an structure that can reduce nonlinear phenomenon. So it doesn't mean that nonlinear effects can't exist in photonic crystal sturcture. Due to its low nonlinear coefficient, it supports high pulse energy propagating via this structure.
Thanks for all for their valuable suggestions, I think their are possibilities for solitons in Photonic crystals both by light propagation and material characteristics. What are the main parameters responsible for both reasons.Is thir some correlation between both effects.That is nonlinearities induced by separately of their is some mutual correlation. My mail is [email protected] Please send me useful related literature.
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