1.
Opt Lett
; 39(24): 6962-5, 2014 Dec 15.
Artigo
em Inglês
| MEDLINE
| ID: mdl-25503041
RESUMO
2D photonic crystals formed inside monocrystalline diamond to operate in the IR spectral range are reported. The photonic structures consisting of 150-µm-long graphitized wires arranged in a square matrix with a period of 4 µm were produced by laser writing with ultrashort pulses. Transmittance spectra (λ=1-14 µm) measured for the structures with increasing thickness demonstrate the occurrence of few minima being different for TM and TE polarization modes. Complex refraction index of the laser-modified material was evaluated for the first time in order to be used in computer simulation of the structures.