Journal ArticleDOI
Direct laser writing of three-dimensional photonic-crystal templates for telecommunications
M. Deubel,Georg von Freymann,Martin Wegener,Suresh Pereira,Kurt Busch,Kurt Busch,Costas M. Soukoulis +6 more
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TLDR
The fabrication—through direct laser writing—and detailed characterization of high-quality large-scale f.c. c.Abstract:
The past decade has witnessed intensive research efforts related to the design and fabrication of photonic crystals1,2. These periodically structured dielectric materials can represent the optical analogue of semiconductor crystals, and provide a novel platform for the realization of integrated photonics. Despite intensive efforts, inexpensive fabrication techniques for large-scale three-dimensional photonic crystals of high enough quality, with photonic bandgaps at near-infrared frequencies, and built-in functional elements for telecommunication applications, have been elusive. Direct laser writing by multiphoton polymerization3 of a photoresist has emerged as a technique for the rapid, cheap and flexible fabrication of nanostructures for photonics. In 1999, so-called layer-by-layer4 or woodpile photonic crystals were fabricated with a fundamental stop band at 3.9 μm wavelength5. In 2002, a corresponding 1.9 μm was achieved6, but the important face-centred-cubic (f.c.c.) symmetry was abandoned. Importantly, fundamental stop bands or photonic bandgaps at telecommunication wavelengths have not been demonstrated. In this letter, we report the fabrication—through direct laser writing—and detailed characterization of high-quality large-scale f.c.c. layer-by-layer structures, with fundamental stop bands ranging from 1.3 to 1.7 μm.read more
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Proceedings Article
Photonic crystals
Igor S. Nefedov,M. Marciniak +1 more
TL;DR: In this paper, the authors describe photonic crystals as the analogy between electron waves in crystals and the light waves in artificial periodic dielectric structures, and the interest in periodic structures has been stimulated by the fast development of semiconductor technology that now allows the fabrication of artificial structures, whose period is comparable with the wavelength of light in the visible and infrared ranges.
Journal ArticleDOI
Femtosecond laser micromachining in transparent materials
Rafael R. Gattass,Eric Mazur +1 more
TL;DR: In this article, the physical mechanisms and the main experimental parameters involved in femtosecond laser micromachining of transparent materials, and important emerging applications of the technology are described.
Journal ArticleDOI
Past achievements and future challenges in the development of three-dimensional photonic metamaterials
TL;DR: In this paper, the authors describe recent progress in the fabrication of three-dimensional metamaterial structures and discuss some of the remaining challenges, including ultra-high-resolution imaging systems, compact polarization optics and cloaking devices.
Journal ArticleDOI
Direct ink writing of 3D functional materials
TL;DR: The ability to pattern materials in 3D shapes without the need for expensive tooling, dies, or lithographic masks is critical for composites, microfluidics, photonics, and tissue engineering as discussed by the authors.
Journal ArticleDOI
Three-Dimensional Invisibility Cloak at Optical Wavelengths
TL;DR: A three-dimensional invisibility-cloaking structure operating at optical wavelengths based on transformation optics is designed and realized and uses a woodpile photonic crystal with a tailored polymer filling fraction to hide a bump in a gold reflector.
References
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Journal ArticleDOI
Inhibited Spontaneous Emission in Solid-State Physics and Electronics
TL;DR: If a three-dimensionally periodic dielectric structure has an electromagnetic band gap which overlaps the electronic band edge, then spontaneous emission can be rigorously forbidden.
Journal ArticleDOI
Strong localization of photons in certain disordered dielectric superlattices
TL;DR: A new mechanism for strong Anderson localization of photons in carefully prepared disordered dielectric superlattices with an everywhere real positive dielectrics constant is described.
Proceedings Article
Photonic crystals
Igor S. Nefedov,M. Marciniak +1 more
TL;DR: In this paper, the authors describe photonic crystals as the analogy between electron waves in crystals and the light waves in artificial periodic dielectric structures, and the interest in periodic structures has been stimulated by the fast development of semiconductor technology that now allows the fabrication of artificial structures, whose period is comparable with the wavelength of light in the visible and infrared ranges.
Journal ArticleDOI
Finer features for functional microdevices
TL;DR: Micromachines can be created with higher resolution using two-photon absorption, and the results can be higher resolution than previously reported using single photon absorption techniques.