Photonic crystals comprising selectively grown flat-topped and sharp-tipped GaN pyramids

D. Coquillat, M. Le Vassor D'Yerville, S. A.Boubanga Tombet, C. Liu, K. Bejtka, I. M. Watson, P. R. Edwards, R. W. Martin, H. M.H. Chong, R. M. De La Rue

Research output: Contribution to journalConference articlepeer-review

1 Citation (Scopus)


Selective area growth offers the promise of producing III-nitride photonic crystals (PhCs) without dry etching and concomitant surface damage. Two PhC structures were studied, one comprising an array of flat-topped GaN micropyramids with micrometre-scale periodicity, and the other made up of sharp-tipped pyramids with sub-micrometre periodicity. Angularly resolved reflection and transmission measurements revealed the presence of sharp resonances associated with resonant Bloch modes. As a result, the photonic band structure was determined along symmetry directions of the reciprocal lattice for the two PhC structures.

Original languageEnglish
Pages (from-to)95-99
Number of pages5
JournalPhysica Status Solidi (C) Current Topics in Solid State Physics
Issue number1
Publication statusPublished - 2007
Event6th International Symposium on Blue Laser and Light Emitting Diodes, ISBLLED 2006 - Montpellier, France
Duration: 2006 May 152006 May 19

ASJC Scopus subject areas

  • Condensed Matter Physics


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