Plasmonic Colloidal Nanoantennas For Tip Enhanced Raman Spectroscopy PDF Download
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Author | : Tyler J. Dill |
Publisher | : |
Total Pages | : 200 |
Release | : 2017 |
Genre | : |
ISBN | : |
Download Plasmonic Colloidal Nanoantennas for Tip-Enhanced Raman Spectroscopy Book in PDF, ePub and Kindle
Plasmonic nanoantennas that a support localized surface plasmon resonance (LSPR) are capable of confining visible light to subwavelength dimensions due to strong electromagnetic field enhancement at the probe tip. Nanoantenna enable optical methods such as tip-enhanced Raman spectroscopy (TERS), a technique that uses scanning probe microscopy tips to provide chemical information with nanoscale spatial resolution and single-molecule sensitivities. The LSPR supported by the probe tip is extremely sensitive to the nanoscale morphology of the nanoantenna. Control of nanoscale morphology is notoriously difficult to achieve, resulting in TERS probes with poor reproducibility. In my thesis, I demonstrate high-performance, predictable, and broadband nanospectroscopy probes that are fabricated by self-assembly. Shaped metal nanoparticles are organized into dense layers and deposited onto scanning probe tips. When coupled to a metal substrate, these probes support a strong optical resonance in the gap between the substrate and the probe, producing dramatic field enhancements. I show through experiment and electromagnetic modeling that close-packed but electrically isolated nanoparticles are electromagnetically coupled. Hybridized LSPRs supported by self-assembled nanoparticles with a broadband optical response, giving colloidal nanoantenna a high tolerance for geometric variation resulting from fabrication. I find that coupled nanoparticles act as a waveguide, transferring energy from many neighboring nanoparticles towards the active TERS apex. I also use surface-enhanced Raman spectroscopy (SERS) to characterize the effects of nanoparticle polydispersity and gap height on the Raman enhancement. These colloidal probes have consistently achieved dramatic Raman enhancements in the range of 108-109 with sub-50 nm spatial resolution. Furthermore, in contrast to other nanospectroscopy probes, these colloidal probes can be fabricated in a scalable fashion with a batch-to-batch reproducibility of ~80%. This body of work serves as an important demonstration that bottom-up engineering can be used for batch fabricatation of high-performance and high-reliability devices using inexpensive equipment and materials.
Author | : Marc Lamy de la Chapelle |
Publisher | : CRC Press |
Total Pages | : 427 |
Release | : 2013-01-24 |
Genre | : Science |
ISBN | : 9814303623 |
Download Nanoantenna Book in PDF, ePub and Kindle
This book concentrates on the various fields related to the development of a nanobiosensor and presents the latest information from renowned experts. It focuses on the enhanced spectroscopy, including SERS, SEIRA/SEIRS, and near-field optics, and the related physical processes (optical properties of metallic nanoparticles, plasmon resonance, field
Author | : Vladimir M. Shalaev |
Publisher | : Springer Science & Business Media |
Total Pages | : 480 |
Release | : 2003-07-01 |
Genre | : Science |
ISBN | : 3540449485 |
Download Optical Properties of Nanostructured Random Media Book in PDF, ePub and Kindle
The contributors to the book are world best experts in the optics of random media; they provide a state-of-the-art review of recent developments in the field including nonlinear optical and magneto-optical properties, Raman and hyper-Raman scattering, laser action, plasmon excitation and localized giant fields, imaging and spectroscopy of random media
Author | : Cosmin Farcau |
Publisher | : GRIN Verlag |
Total Pages | : 154 |
Release | : 2015-03-03 |
Genre | : Science |
ISBN | : 3656911215 |
Download Ordered Plasmonic Nanostructures: from Fabrication to Relevant Applications in Optical Spectroscopy and Sensing Book in PDF, ePub and Kindle
Doctoral Thesis / Dissertation from the year 2008 in the subject Physics - Optics, Babeș-Bolyai Universit, language: English, abstract: Ordered plasmonic nanostructures are currently the subject of numerous scientific studies, due to their potential applications, from optical communications to chemical analyses and biomedicine. This thesis is focused on a special type of periodically ordered two-dimensional (2D) metallo-dielectric structure, noble metal films over microsphere arrays: from their fabrication and characterization, to spectroscopic applications. Prepared structures exhibit remarkable optical properties (including an unusually high transmittance, resembling the extraordinary optical transmission phenomenon), resulting from the excitation of surface plasmons. It is demonstrated that these plasmo-photonic structures are very promising multifunctional active-substrates for Surface Enhanced Raman Scattering, Metal Enhanced Fluorescence, and Surface Plasmon Resonance Spectroscopy. Chapter 1 is devoted to giving an overview of the interesting aspects related to the optical properties and applications of periodically structured metals and dielectrics. We also briefly describe some of the currently developed nanofabrication techniques. A few concepts, like the photonic band and surface plasmon are introduced, being useful for the discussions in the upcoming chapters. We pay a special attention to colloidal photonic crystal films and noble metal structures obtained by templating on two-dimensional colloidal crystals. Chapter 2 presents own experimental results concerning the preparation, characterization and lithographic applications of two-dimensional (2D) colloidal crystal films. Results of the optical properties investigations are presented in Chapter 3, and divided in two main categories: i) photonic properties of bare microsphere arrays, and ii) plasmonic properties of noble metal nanostructured films deposited over microsphere arrays. In Chapter 4 we explore the capabilities of noble metal coated microsphere arrays to improve the sensitivity of optical spectroscopic methods: Surface Enhanced Raman Scattering, Metal Enhanced Fluorescence, and Surface Plasmon Resonance Spectroscopy.
Author | : Chris D. Geddes |
Publisher | : John Wiley & Sons |
Total Pages | : 339 |
Release | : 2017-04-10 |
Genre | : Science |
ISBN | : 1118027930 |
Download Surface Plasmon Enhanced, Coupled and Controlled Fluorescence Book in PDF, ePub and Kindle
Explains the principles and current thinking behind plasmon enhanced Fluorescence Describes the current developments in Surface Plasmon Enhanced, Coupled and Controlled Fluorescence Details methods used to understand solar energy conversion, detect and quantify DNA more quickly and accurately, and enhance the timeliness and accuracy of digital immunoassays Contains contributions by the world’s leading scientists in the area of fluorescence and plasmonics Describes detailed experimental procedures for developing both surfaces and nanoparticles for applications in metal-enhanced fluorescence
Author | : Hao Wang |
Publisher | : |
Total Pages | : 157 |
Release | : 2016 |
Genre | : |
ISBN | : |
Download Coupled Plasmonics for Tip Enhanced Raman Scattering and Understanding of Quantum Effects in Plasmonic Junctions Book in PDF, ePub and Kindle
Author | : Challa S.S.R. Kumar |
Publisher | : Springer Science & Business Media |
Total Pages | : 659 |
Release | : 2012-03-30 |
Genre | : Technology & Engineering |
ISBN | : 3642206204 |
Download Raman Spectroscopy for Nanomaterials Characterization Book in PDF, ePub and Kindle
First volume of a 40-volume series on nanoscience and nanotechnology, edited by the renowned scientist Challa S.S.R. Kumar. This handbook gives a comprehensive overview about Raman spectroscopy for the characterization of nanomaterials. Modern applications and state-of-the-art techniques are covered and make this volume essential reading for research scientists in academia and industry.
Author | : Ricardo Aroca |
Publisher | : John Wiley & Sons |
Total Pages | : 260 |
Release | : 2006-05-01 |
Genre | : Science |
ISBN | : 9780470035658 |
Download Surface-Enhanced Vibrational Spectroscopy Book in PDF, ePub and Kindle
Surface Enhanced Vibrational Spectroscopy (SEVS) has reached maturity as an analytical technique, but until now there has been no single work that describes the theory and experiments of SEVS. This book combines the two important techniques of surface-enhanced Raman scattering (SERS) and surface-enhanced infrared (SEIR) into one text that serves as the definitive resource on SEVS. Discusses both the theory and the applications of SEVS and provides an up-to-date study of the state of the art Offers interpretations of SEVS spectra for practicing analysts Discusses interpretation of SEVS spectra, which can often be very different to the non-enhanced spectrum - aids the practicing analyst
Author | : |
Publisher | : Elsevier |
Total Pages | : 339 |
Release | : 2011-09-22 |
Genre | : Science |
ISBN | : 008046789X |
Download Tip Enhancement Book in PDF, ePub and Kindle
This book discusses the recent advances in the area of near-field Raman scattering, mainly focusing on tip-enhanced and surface-enhanced Raman scattering. Some of the key features covered here are the optical structuring and manipulations, single molecule sensitivity, analysis of single-walled carbon nanotubes, and analytic applications in chemistry, biology and material sciences. This book also discusses the plasmonic materials for better enhancement, and optical antennas. Further, near-field microscopy based on second harmonic generation is also discussed. Chapters have been written by some of the leading scientists in this field, who present some of their recent work in this field. ·Near-field Raman scattering·Tip-enhanced Raman spectroscopy·Surface-enhanced Raman spectroscopy·Nano-photonics·Nanoanalysis of Physical, chemical and biological materials beyond the diffraction limits·Single molecule detection
Author | : Manuel Martina |
Publisher | : |
Total Pages | : |
Release | : 2017 |
Genre | : |
ISBN | : |
Download Large-area Fabrication of Pyramidal Plasmonic Nanoprobes and Their Characterisation in Tip-enhanced Raman Spectroscopy Applications Book in PDF, ePub and Kindle