It seems to me one of the best books on photonic crystals was published by the researchers from Harvard, here is the reference: John D. Joannopoulos, Steven G. Johnson, Joshua N. Winn, and Robert D. Meade, "Photonic Crystals: Molding the Flow of Light", 2nd edition, Princeton University Press (2008). I hope this helps, Michael.
I hope you are fine and your problem regarding this topic has been solved. By the way, for starting I would recommend you to first read " Electromagnetic metamaterials " by Caloz. It is a book which deals with metamterials and the way they are fabricated with transmission line theory. However, if you want to explore the physics of metamaterials you may start with " Metamaterials: Physics and Engineering Explorations " written by Engheta et al. It gives more explanation about this issue. After reading these books you may read the ones which are mentioned below for broadening your vision in this field. Each of the mentioned books has their own advantages. I can help you more if you could be more specific about your problem (if after these years you still have that problem)
hope they can help you.
[1]. Broadband metamaterials in electromagnetics
[2]. Metamaterials theory, design and applications
[3]. Metamaterials with negative parameters
[4]. Metamaterial critique and alternatives
P.s. the fourth book contains some critiques regarding the fundamental physics of metamaterials, you may read this book after you finished others. He used Smith chart and transmission line equations to criticize metamaterials.