Spectroscopic ellipsometry and polarimetry for materials and systems analysis at the nanometer scale: state-of-the-art, potential, and perspectives

Losurdo, Maria; Bergmair, Michael; Bruno, Giovanni; Cattelan, Denis; Cobet, Christoph; Martino, A. De; Fleischer, K.; Dohčević‐Mitrović, Z.; Esser, N.; Galliet, Melanie; Gajić, Radoš; Hemzal, Dušan; Hingerl, Kurt; Humlíček, Josef; Ossikovski, Razvigor; Popović, Zoran V.; Saxl, Ottilia

doi:10.1007/s11051-009-9662-6

Cited by 189 publications

(130 citation statements)

References 92 publications

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“…The quasistatic approximation hence holds and the cluster layer can be correctly regarded as a continuous medium with an effective anisotropic dielectric function ε L,j . 11 The additivity of bulk and NP response, as well as the relationship between Re[ ε j ] and ε L,j , can be explained under the hypothesis of a thin anisotropic NP layer, bulk isotropy, and alignment of the optical and crystallographic axes. Previous 085440-3 work defining a surface excess function [26][27][28] is adapted to make the anisotropic response explicit.…”

Section: Discussionmentioning

confidence: 99%

“…Spectroscopic ellipsometry (SE) can overcome this limitation as it monitors changes in the polarization state of a linearly polarized beam reflected at oblique angles of incidence. 10,11 It is therefore a tool capable of investigating the full optical behavior of a plasmonic sample in the far field. 12 Furthermore, SE can record the spectra with a better sensitivity than absorption spectroscopy, as only relative changes in the polarization state of the incoming light are measured.…”

Section: Introductionmentioning

confidence: 99%

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Probing the out-of-plane optical response of plasmonic nanostructures using spectroscopic ellipsometry

Verre¹,

Fleischer²,

Smith³

et al. 2011

Phys. Rev. B

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A simplified approach to investigate the out-of-plane response of plasmonic nanostructures using spectroscopic ellipsometry (SE) is presented. One-dimensional self-assembled arrays of Ag nanoparticles (NP's) were grown on stepped Al 2 O 3 (0001), in ultrahigh vacuum, using deposition at a glancing angle. The SE response was measured with the plane of incidence aligned along, and across, the surface steps. From the raw data, an anisotropic surface excess function (ASEF) can be extracted, whose properties depend only on the dielectric function of the NP layer. Three resonances are clearly seen in the ASEF: two in-plane resonances, which correspond to the resonances measured using normal incidence reflection anisotropy spectroscopy, and the out-of-plane resonance. A dipole model is used to simulate the optical response of the NP layer, where the presence of the out-of-plane resonance provides an important additional constraint in developing the model.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Probing the out-of-plane optical response of plasmonic nanostructures using spectroscopic ellipsometry

Verre¹,

Fleischer²,

Smith³

et al. 2011

Phys. Rev. B

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“…Obviously, the optical properties of gold nanoparticles differ from bulk gold and this difference has to be taken into account. An appropriate and widely used solution is to treat the optical response of the particles as combination of oscillator models: typically one Drude-and three Lorentz-oscillators are used [25,26,27]. The third layer in the stack is similar to the first but not the same: the non-uniformity and the polydispersity of the particulate system result here a bit higher effective layer thickness and void ratio.…”

Section: Properties Of Langmuir-and Langmuir-blodgett Filmsmentioning

confidence: 99%

Langmuir-Blodgett Films of Gold Nanorods with Different Silica Shell Thicknesses

Gergely-Fülöp

Nagy

Deák

2015

Period. Polytech. Chem. Eng.

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We report the preparation and optical characterization of Langmuir and Langmuir-Blodgett (LB) IntroductionThe importance of wet chemical synthesis of inorganic structures owning at least one dimension at the nanoscale has been a continuously emerging topic in the last two decades. A high variety of methods have been developed synthesizing various types of nanoparticles [1][2][3][4] and thin films [5-9] for different purposes.Plasmonic gold nanoparticles gained immense attention in recent past due to their special optical properties. These small noble metal nanoparticles can support certain localized surface plasmon resonance modes that results in a very large extinction (absorption plus scattering) cross-sections and nearfield enhancements at certain wavelength [10]. There are many literature reports about how to control the optical properties of these particles through adjusting their size and shape during wet-chemical nanoparticle growth. Based on the specific interaction of the nanoparticles with light, applications in the field of cancer therapy [11], sensor applications [12] and energy conversion [13] are envisaged. Besides of the optical properties, however, the physico-chemical behavior of the particles is crucial. Due to their size the particles belong to the colloidal domain, and their interaction with other substances is governed by colloidal interactions. These often determine or limit the range of possible applications (e.g. due to aggregation or unwanted surface adsorption).In this paper we focus on the connection between the physicochemical and optical properties of gold/mesoporous silica core/ shell nanoparticles as well as their assembled structures. We investigate how an increasing thickness of silica shell affects the extinction spectrum of the nanoparticles in solution and when deposited in the form of a monolayer on a solid support.

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“…For much more extended and detailed up-to-date discussion on fundamental principles of ellipsometry, instrumentations, data analysis as well as multiple applications, see (Tompkins, 1993;Tompkins & McGahan, 1999;Tompkins & Irene (Eds. ), 2005;Fujiwara, 2007;Losurdo et al, 2009;Azzam, 2010). Ellipsometry (reflection polarimetry; single-wavelength as well as spectroscopic) is an optical measurement technique for evaluation geometrical and material properties of substrates, thin films and multilayer structures.…”

Section: Fundamentals Of Ellipsometrymentioning

confidence: 99%

Spectroscopic Ellipsometry of Ion-Implantation-Induced Damage

Shamiryan¹,

Likhachev²

2012

Ion Implantation

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Spectroscopic ellipsometry and polarimetry for materials and systems analysis at the nanometer scale: state-of-the-art, potential, and perspectives

Cited by 189 publications

References 92 publications

Probing the out-of-plane optical response of plasmonic nanostructures using spectroscopic ellipsometry

Probing the out-of-plane optical response of plasmonic nanostructures using spectroscopic ellipsometry

Langmuir-Blodgett Films of Gold Nanorods with Different Silica Shell Thicknesses

Spectroscopic Ellipsometry of Ion-Implantation-Induced Damage

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