Optical reflectivity and spatial mode localization of white-noise random dielectric oxide multilayers

Escorcia‐García, J.

doi:10.1016/j.optcom.2018.09.043

Cited by 6 publications

(1 citation statement)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, 1D multicomponent crystals [26] can be used in thermophotoelectric devices. The random dielectric multilayers following a white-noise-like pattern can be used as solar concentrators and random lasers [27]. It was theoretically predicted that a PC filter deposited on the surface of a diode should provide strong bonding of all electromagnetic radiation modes at the frequencies above the PBG and should not provide coupling of lowfrequency modes [28].…”

Section: Introductionmentioning

confidence: 99%

Energy flux optimization in 1D multiperiodic four-component photonic crystals

Panyaev

Sannikov

Dadoenkova

2021

Optics Communications

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Energy flux optimization in 1D multiperiodic four-component photonic crystals

Panyaev

Sannikov

Dadoenkova

2021

Optics Communications

View full text Add to dashboard Cite

Tunning the omnidirectional bandgap of nanoporous silicon using a semi-sinusoidal refractive index profile

Salem,

Abdelaleem,

Nasr

et al. 2024

Appl. Phys. A

View full text Add to dashboard Cite

We report the theoretical comparison of the omnidirectional bandgap in a 1-D photonic crystal using sinusoidal and semi-sinusoidal refractive index profiles. It is found that the corresponding omnidirectional bandgap of the semi-sinusoidal widens and shifts to a higher wavelength range as a function of the asymmetric ratio of semi-sinusoidal profile. The asymmetric ratio plays an essential role in tunning the width of the omnidirectional bandgap due to the changed average refractive index and optical thickness. The semi-sinusoidal refractive index is experimentally achieved by changing the current waveform. Novel omnidirectional nanoporous silicon mirrors with an omnidirectional bandgap covering optical communication wavelength (1550 nm) were fabricated using a semi-sinusoidal current waveform. The experimental analogy was carried out by building up the multilayered dielectric structures of omnidirectional mirrors by anodic etching using a semi-sinusoidal current waveform. The experimental results were compared with the theoretical results investigated by the Transfer matrix method. It was shown that the distorted current profile impacts the quality of the omnidirectional bandgap although it does not affect the porous size range.

show abstract