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Physics and applications of photonic crystals

Research output: Contribution to journalArticleScientificpeer-review


Original languageEnglish
Pages (from-to)87-95
Number of pages9
JournalPhotonics and Nanostructures - Fundamentals and Applications
Issue number2
Publication statusPublished - Oct 2004
Externally publishedYes
Publication typeA1 Journal article-refereed


In this article, we investigate how the photonic band gaps and the variety of band dispersions of photonic crystals can be utilized for various applications and how they further give rise to completely novel optical phenomena. The enhancement of spontaneous emission through coupled cavity waveguides in a one-dimensional silicon nitride photonic microcrystal is investigated. We then present the highly directive radiation from sources embedded in two-dimensional photonic crystals. The manifestation of novel and intriguing optical properties of photonic crystals are exemplified experimentally by the negative refraction and the focusing of electromagnetic waves through a photonic crystal slab with subwavelength resolution.


  • Coupled cavity waveguide, Left-handed material, Negative refraction, Photonic crystal, Spontaneous emission