Journal ArticleDOI
Tailoring gold nanostructures for near-field optical applications
Monika Fleischer,Dai Zhang,Kai Braun,Sebastian Jäger,R. Ehlich,M. Häffner,C. Stanciu,J. K. H. Hörber,Alfred J. Meixner,Dieter P. Kern +9 more
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TLDR
A method of combined thin-film deposition, electron beam lithography, and ion milling is presented for the fabrication of gold and silver nanostructures to create size- and shape-tunable structures that present a toolbox for nano-optical investigations.Abstract:
A method of combined thin-film deposition, electron beam lithography, and ion milling is presented for the fabrication of gold and silver nanostructures. The flexibility of lithographical processes for the variation of geometric parameters is combined with three-dimensional control over the surface evolution. Depending on the etching angle, different shapes ranging from cones over rods to cups can be achieved. These size- and shape-tunable structures present a toolbox for nano-optical investigations. As an example, optical properties of systematically varying structures are examined in a parabolic mirror confocal microscope.read more
Citations
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Multifunctional Gold Nanoparticles for Diagnosis and Therapy of Disease
TL;DR: This review covers basic principles and recent findings in gold nanoparticle applications for imaging, therapy and diagnostics, with a focus on reports of multifunctional AuNPs.
Journal ArticleDOI
Solution processed polydimethylsiloxane/gold nanostar flexible substrates for plasmonic sensing
TL;DR: This work addresses the requirements of plasmonic sensors, related to sufficiently large areas where nanoparticles are uniformly immobilized with high density, as well as mechanical flexibility, which offers additional advantages for real-world applications.
Journal ArticleDOI
Tunable Localized Plasmon Transducers Prepared by Thermal Dewetting of Percolated Evaporated Gold Films
Alexander B. Tesler,Lev Chuntonov,Tanya Karakouz,Tatyana Bendikov,Gilad Haran,Alexander Vaskevich,Israel Rubinstein +6 more
TL;DR: In this paper, gold island films displaying localized plasmon properties were prepared by evaporation of just-percolated Au films onto glass substrates followed by annealing at ≥550 °C. Annealing induces depercolation and formation of large, single-crystalline, well-separated islands, partially embedded in the glass.
Journal ArticleDOI
Gold nanocone near-field scanning optical microscopy probes.
Monika Fleischer,Alexander Weber-Bargioni,M. Virginia P. Altoe,Adam M. Schwartzberg,P. James Schuck,Stefano Cabrini,Dieter P. Kern +6 more
TL;DR: The antenna functionality is demonstrated by gathering the near-field enhanced Raman signature of individual carbon nanotubes with a gold cone scanning probe and the structural properties of these sharp-tipped probes are presented together with topographical images recorded with a cone probe.
Journal ArticleDOI
Detection of single amino acid mutation in human breast cancer by disordered plasmonic self-similar chain
Maria Laura Coluccio,Francesco Gentile,Gobind Das,Annalisa Nicastri,Angela Mena Perri,Patrizio Candeloro,Gerardo Perozziello,Remo Proietti Zaccaria,Juan Sebastian Totero Gongora,Salma Alrasheed,Andrea Fratalocchi,Tania Limongi,Giovanni Cuda,Enzo Di Fabrizio +13 more
TL;DR: Novel nanoarray for single molecule detection from peptide mixture derived from human samples for early diagnosis of breast cancer and can be considered a general strategy that is applicable to various pathologies and other chemical analytical cases where complex mixtures have to be resolved in their constitutive components.
References
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Journal ArticleDOI
Nanoengineering of optical resonances
TL;DR: In this paper, a general approach to the making of metal nanoshell composite nanoparticles based on molecular self-assembly and colloid reduction chemistry is described, which can be used to construct a new, composite nanoparticle whose optical resonance can be designed in a controlled manner.
MonographDOI
Principles of Nano-Optics by Lukas Novotny
Lukas Novotny,Bert Hecht +1 more
TL;DR: The NANO and QUANTUM OPTICS: An Introduction to BASIC as discussed by the authors is a collection of the most popular NANOPHOTONICS articles from 2012-2018.
Journal ArticleDOI
Nanosphere lithography: A materials general fabrication process for periodic particle array surfaces
TL;DR: In this article, a variety of PPA surfaces have been prepared using identical single-layer and double-layer NSL masks made by self-assembly of polymer nanospheres with diameter, D =264 nm, and varying both the substrate material S and the particle material M. In the examples shown here, S was an insulator, semiconductor, or metal and M was a metal, inorganic ionic insulator or an organic π-electron semiconductor.
Journal ArticleDOI
Optical properties of gold nanorings
Javier Aizpurua,Per Hanarp,Duncan S. Sutherland,Mikael Käll,Garnett W. Bryant,F. J. García de Abajo +5 more
TL;DR: The optical response of ring-shaped gold nanoparticles prepared by colloidal lithography is investigated and the electric field associated with these plasmons exhibits uniform enhancement and polarization in the ring cavity, suggesting applications in near-infrared surface-enhanced spectroscopy and sensing.
Journal ArticleDOI
Photoluminescence of Metals
TL;DR: In this paper, it was shown that anomalous recombinations in gold, copper, and gold-copper alloys arise from transitions between electrons in conduction-band states below the Fermi level and holes in the $d$ bands generated by optical excitation.