2007
DOI: 10.1088/0957-4484/18/36/365601
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Preparation of photonic crystals made of air pores in anodic alumina

Abstract: Photonic crystals made of air pores in anodic alumina were prepared by electrochemical oxidation of aluminium and subsequent chemical etching. Optical photographs and transmission spectra prove the existence of a photonic band gap in the optical sprectrum for this porous material. The colour of the sample and the diffraction peak position in the transmission spectra could easily be adjusted in the chemical etching process. This method could provide a possible approach to producing large-area optical photonic c… Show more

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Cited by 140 publications
(103 citation statements)
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References 23 publications
(23 reference statements)
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“…The abrupt fall of current take place when the potential is applied which shows that the nucleation starts at the pores bottom. S. Valizadeh et al, described that the distinctly decrease in current take place owing to the mass transport limitation [37,38]. After that the current remains nearly unchanged till the complete filling of pores.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…The abrupt fall of current take place when the potential is applied which shows that the nucleation starts at the pores bottom. S. Valizadeh et al, described that the distinctly decrease in current take place owing to the mass transport limitation [37,38]. After that the current remains nearly unchanged till the complete filling of pores.…”
Section: Resultsmentioning
confidence: 99%
“…Preparation of the AAO template: The porous anodic alumina oxide (AAO) templates were prepared via a two-step anodization procedure [30,37,38]. Prior to anodizing, highpurity aluminum foils (99.999%) were first degreased in acetone and then were annealed in a vacuum of 10 −5 Torr at 500•C for 5 h to remove the mechanical stress, thus obtaining the aluminum foils with a homogeneous structure over a large area.…”
Section: Experimental Detailmentioning
confidence: 99%
“…Instead, for interpore distances larger or in the order of light wavelength, the structure optical properties are modified in a more complex way giving, origin to light scattering effects. Finally, optical properties depend also on other geometrical parameters of PAA such as the degree of ordering of the pores [76] or the in-depth variation in the pore diameter [77,78]. Structures with pores ordered in an hexagonal array can be produced with the two-step anodization procedure introduced by Masuda and Fukuda [79].…”
Section: Biosensingmentioning
confidence: 99%
“…By adequately controlling the pore morphology in the depth of the PAA using variable anodiza-tion conditions pore diameter variations or controlled pore branching are obtained. Such structures constitute optical structures such as Fabry-Pérot (F-P) cavities [81] or distributed Bragg-reflectors (DBR) [77,78,82].…”
Section: Biosensingmentioning
confidence: 99%
“…[4][5][6][7][8][9] Recently, the new technique has been developed for production of mesoporous one-dimensional (1D) photonic crystals by means of electrochemical etching of aluminum. [10][11][12] The lattice constant of obtained mesoporous 1D alumina photonic crystals depends on the etching regime and may vary in the range of 100-500 nm.…”
Section: Introductionmentioning
confidence: 99%