Periodic metallo-dielectric structure in diamond

Optics Express
M ShimizuK Hirao

Abstract

Intense ultrashort light pulses induce three dimensional localized phase transformation of diamond. Photoinduced amorphous structures have electrical conducting properties of a maximum of 64 S/m based on a localized transition from sp(3) to sp(2) in diamond. The laser parameters of fluence and scanning speed affect the resultant electrical conductivities due to recrystallization and multi-filamentation phenomena. We demonstrate that the laser-processed diamond with the periodic cylinder arrays have the characteristic transmission properties in terahertz region, which are good agreement with theoretical calculations. The fabricated periodic structures act as metallo-dielectric photonic crystal.

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Citations

Apr 21, 2010·Acta Crystallographica. Section A, Foundations of Crystallography·Kiyoaki TanakaTakashi Komori
May 21, 2010·Acta Crystallographica. Section B, Structural Science·Shiro FunahashiFumitoshi Iga
Dec 17, 2014·Optics Letters·T V KononenkoV I Konov

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