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Photonic crystals - A step towards integrated circuits for photonics
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.
KTH, Superseded Departments, Microelectronics and Information Technology, IMIT.
2004 (English)In: ChemPhysChem, ISSN 1439-4235, E-ISSN 1439-7641, Vol. 5, no 9, 1268-1283 p.Article, review/survey (Refereed) Published
Abstract [en]

The field of photonic crystals has, over the past few years, received dramatically increased attention. Photonic crystals are artificially engineered structures that exhibit a period variation in one, two, or three dimensions of the dielectric constant, with a period of the order of the pertinent light wavelength. Such structures in three dimensions should exhibit properties similar to solid-state electronic crystals, such as bandgaps, in other words wavelength regions where light cannot propagate in any direction. By introducing defects into the periodic arrangement, the photonic crystals exhibit properties analogous to those of solid-state crystals. The basic feature of a photonic bandgap was indeed experimentally demonstrated in the beginning of the 1990s, and sparked a large interest in, and in many ways revitalized, photonics research. There are several reasons for this attention. One is that photonic crystals, in their own right, offer a proliferation of challenging research tasks, involving a multitude of disciplines, such as electromagnetic theory, nanofabrication, semiconductor technology, materials science, biotechnology, to name a few. Another reason is given by the somewhat more down-to-earth expectations that photonics crystals will create unique opportunities for novel devices and applications, and contribute to solving some of the issues that have plagued photonics such as large physical sizes, comparatively low functionality, and high costs. Herein, we will treat some basics of photonic crystal structures and discuss the state-of-the-art in fabrication as well give some examples of devices with unique properties, due to the use of photonic crystals. We will also point out some of the problems that still remain to be solved, and give a view on where photonic crystals currently stand.

Place, publisher, year, edition, pages
2004. Vol. 5, no 9, 1268-1283 p.
Keyword [en]
crystal engineering, diffraction, optics, nanostructures, photonic crystals, solid state structures, near-infrared wavelengths, averaged-field approach, of-plane scattering, defect wave-guides, band-gap, mu-m, macroporous silicon, electromagnetic-waves, negative refraction, maxwells equations
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-23769DOI: 10.1002/cphc.200301075ISI: 000224147700002Scopus ID: 2-s2.0-5044226669OAI: oai:DiVA.org:kth-23769DiVA: diva2:342468
Note
QC 20100525 QC 20110916Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2011-09-16Bibliographically approved

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