Topic
Fabrication
About: Fabrication is a research topic. Over the lifetime, 20475 publications have been published within this topic receiving 235676 citations.
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74 citations
TL;DR: This paper presents a novel adaptation of NSL that reduces the effect of defects on the resulting nanostructures and offers excellent control over the diameter, aspect ratio, and pitch of the fabricated elements.
Abstract: Nanosphere lithography (NSL) is a simple, cost-effective, and powerful technique capable of producing large-area arrays of ferromagnetic nanostructures with dimensions below 100 nm. These properties make NSL an attractive process for the fabrication of arrays of magnetic elements with applications in magnetic data storage. The main disadvantage with conventional NSL is that the monolayer of spheres always contains imperfections that are transferred to the resulting nanostructures. This can significantly affect the structural and magnetic properties of the fabricated array. In this paper we present a novel adaptation of NSL that reduces the effect of such defects on the resulting nanostructures. The technique also offers excellent control over the diameter, aspect ratio, and pitch of the fabricated elements. These properties are demonstrated through the fabrication of arrays of Ni elements of 210 nm diameter and arrays of Co elements with diameters between 200 and 320 nm.
74 citations
TL;DR: This molding technique is expanded to fabricate resonators from polymers that have either thermal or UV curing mechanisms, and these resonant cavities demonstrate quality factors which are competitive with photonic crystals and microdisk resonators.
Abstract: As new synthetic, low-loss polymers are developed, polymer optical cavities are experiencing a revolution, in both fabrication design and functionality. Recently, a fabrication technique was developed that enabled planar arrays of polymeric resonators to achieve cavity Q factors greater than 1 million. In the present letter, this molding technique is expanded to fabricate resonators from polymers that have either thermal or UV curing mechanisms. The quality factors and broad band spectrum of these devices are determined at 680, 1300, and 1550 nm. These resonant cavities demonstrate quality factors which are competitive with photonic crystals and microdisk resonators.
74 citations
TL;DR: This work employed a floating chemical vapor deposition technique and applied a liquid (solution)-free precursor system for the fabrication of single-walled carbon nanotube macro-films on various flexible substrates from metallic foils to polymer films.
74 citations
TL;DR: In this paper, a 2D photonic crystal (PhC) was designed as a selective emitter, fabricated on a Ta3%W substrate, and optical properties and thermal stability were characterized.
Abstract: We demonstrate tantalum-tungsten (Ta-W) solid solution alloy photonic crystals (PhCs) as spectrally selective components for high temperature energy conversion. The thermo-mechanical properties of the alloy are tuned by the Ta-W ratio. A 2D PhC was designed as a selective emitter, fabricated on a Ta3%W substrate, and optical properties and thermal stability were characterized. A thin layer of HfO2 was deposited for thermal stability. The PhCs show outstanding emittance selectivity, well preserved after annealing for 24h at 1200 °C. The structure is preserved as shown in cross-sectional images, demonstrating that the coating effectively prevents degradation due to surface diffusion at high temperatures.
74 citations