Periodic metallo-dielectric structure in diamond.
Opt Express
; 17(1): 46-54, 2009 Jan 05.
Article
in En
| MEDLINE
| ID: mdl-19129871
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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Database:
MEDLINE
Main subject:
Diamond
/
Electric Conductivity
Type of study:
Prognostic_studies
Language:
En
Year:
2009
Type:
Article