Electrochemically Prepared Pore Arrays for Photonic-Crystal Applications
- 1 August 2001
- journal article
- Published by Springer Science and Business Media LLC in MRS Bulletin
- Vol. 26 (8), 623-626
- https://doi.org/10.1557/mrs2001.156
Abstract
In the last few years, photonic crystals have gained considerable interest due to their ability to “mold the flow of light.” Photonic crystals are physically based on Bragg reflections of electromagnetic waves. In simple terms, a one-dimensional (1D) photonic crystal is a periodic stack of thin dielectric films with two different refractive indices, n1 and n2. The two important geometrical parameters determining the wavelength of the photonic bandgap are the lattice constant, a = d1(n1) + d2(n2), and the ratio of d1 to a (where d1 is the thickness of the layer with refractive index n1, and d2 is the thickness of layer n2). For a simple quarter-wavelength stack, the center wavelength λ of the 1D photonic crystal would be simply λ = 2n1d1 + 2n2d2. In the case of 2D photonic crystals, the concept is extended to either airholes in a dielectric medium or dielectric rods in air. Therefore, ordered porous dielectric materials like porous silicon or porous alumina are intrinsically 2D photonic crystals.Keywords
This publication has 35 references indexed in Scilit:
- Optical characterisation of 2D macroporous silicon photonic crystals with bandgaps around 3.5 and 1.3 μmOptical Materials, 2001
- Silicon-Based Photonic CrystalsAdvanced Materials, 2001
- Nano‐ and Macropore Formation in p‐Type SiliconJournal of the Electrochemical Society, 1999
- Formation of Porous Layers with Different Morphologies during Anodic Etching of n-InPElectrochemical and Solid-State Letters, 1999
- Macropore Formation in Highly Resistive p‐Type Crystalline SiliconJournal of the Electrochemical Society, 1998
- Conditions of Elaboration of Luminescent Porous Silicon from Hydrogenated Amorphous SiliconPhysical Review Letters, 1996
- Two-dimensional infrared photonic band gap structure based on porous siliconApplied Physics Letters, 1995
- Ordered Metal Nanohole Arrays Made by a Two-Step Replication of Honeycomb Structures of Anodic AluminaScience, 1995
- The Electrochemical Oxidation of Silicon and Formation of Porous Silicon in AcetonitrileJournal of the Electrochemical Society, 1994
- The Physics of Macropore Formation in Low Doped n‐Type SiliconJournal of the Electrochemical Society, 1993