CHEN Hai-bo, GAO Ying-jun, HU Su-mei. Properties of Mirror Symmetrical Photonic Crystals of Dielectric Constant Defect Layer with Imaginary Part[J]. Chinese Journal of Luminescence, 2008,29(2): 233-237
CHEN Hai-bo, GAO Ying-jun, HU Su-mei. Properties of Mirror Symmetrical Photonic Crystals of Dielectric Constant Defect Layer with Imaginary Part[J]. Chinese Journal of Luminescence, 2008,29(2): 233-237DOI:
Properties of Mirror Symmetrical Photonic Crystals of Dielectric Constant Defect Layer with Imaginary Part
the band function and the optical transmission properties of mirror symmetrical photonic crystals of two dielectric constant defect layer with imaginary part are stu-died
especially discussing on the case of negation imaginary part and the optical thickness of the defect layer is λ
0
/4. The investigation results show that several large transmittance gains appear at the transmittance bands if the dielectric constant defects with negative imaginary part are added in the photonic crystals. With the increasing of the ratio of imaginary and real part of defect's dielectric constant
the transmittance gains will change with different rule
but the transmissivity of the defect film at middle wavelength is invariable.The conclusion might be used to multiple channel narrow band filter and multiple channel optical amplification device with different amplificatory multiple synchronously. However
all of the transmittance peaks are minished if the imaginary part of the defect layer's dielectric constant was positive
because the transmittance peaks are absorbed in this case. With the increasing of the imaginary
the transmittance is reducing. The conclusion leads to use photonic crystals for optical amplification device theoretically.
关键词
光子晶体复介电常量缺陷层透射增益透射吸收
Keywords
photonic crystaldefect layer with imaginary part of dielectric constanttransmittance gaintransmittance absorption
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