Photonic crystal correlation

[xxx-128]

There are many contents related to photonic crystals in this code. Is there any corresponding article for reading?

[brunorigal]

I have no article directly related to this code, however:

• The wikipedia page is already quite good: https://en.wikipedia.org/wiki/Photonic_crystal
• This book deals with the subject more in depth: https://link.springer.com/book/10.1007/978-3-662-14324-7
• And for explanations on the simulations, this course is awesome: https://04.phf-site.com/2016/10/raymond-c-rumpf-computational.html