Surface plasmon resonance due to the interface of a metal and a chiral sculptured thin film

Gilani, Tariq; Dushkina, Natalia; Freeman, W. Larry; Numan, Muhammad; Talwar, Devki N.; Pulsifer, Drew P.

doi:10.1117/1.3525282

Cited by 31 publications

(19 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Characteristics such as phase speed, attenuation rate, and spatial profiles of the electromagnetic fields are different from one SPP-wave mode to another, but all have the same frequency. Furthermore, the excitation of multiple SPP-wave modes along the interface of a metal and a periodically non-homogeneous dielectric material at a single frequency has been experimentally demonstrated12131415.…”

mentioning

confidence: 99%

“…In Refs 9,10,11,12,13,14,15, the periodically non-homogeneous dielectric material is either an isotropic rugate filter11 or a sculptured thin film (STF) that is periodically non-homogeneous along its thickness direction91012131415. STFs are a class of nano-engineered, unidirectionally non-homogeneous, and anisotropic thin films that can be fabricated using a variety of physical vapor deposition (PVD) techniques1617.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Optical sensing of analytes in aqueous solutions with a multiple surface-plasmon-polariton-wave platform

Swiontek

Pulsifer

Lakhtakia

2013

Sci Rep

View full text Add to dashboard Cite

The commonly used optical sensor based on surface plasmon-polariton wave phenomenon can sense just one chemical, because only one SPP wave can be guided by the interface of a metal and a dielectric material contained in the sensor. Multiple analytes could be detected and/or the sensing reliability for a single analyte could be enhanced, if multiple SPP-wave modes could be excited on a single metal/dielectric interface. For that to happen, the partnering dielectric material must be periodically non-homogeneous. Using a chiral sculptured thin film (CSTF) as that material in a SPP-wave platform, we show that the angular locations of multiple SPP-wave modes shift when the void regions of the CSTF are infiltrated with a fluid. The sensitivities realized in the proof-of-concept experiments are comparable to state-of-research values.

show abstract

mentioning

confidence: 99%

mentioning

confidence: 99%

Optical sensing of analytes in aqueous solutions with a multiple surface-plasmon-polariton-wave platform

Swiontek

Pulsifer

Lakhtakia

2013

Sci Rep

View full text Add to dashboard Cite

show abstract

“…Cr chiral STFs (Cr-CSTFs) on borosilicate glass slides were prepared using a vapor deposition technique similar to one that has been described elsewhere [9] by the Department of Engineering Sciences and Mechanical Engineering, Pennsylvania State University, University Park, Penn. The chiral morphology was produced by fixing the substrates at an oblique angle measured between the substrates surface and the average direction of the vapor flux.…”

Section: Resultsmentioning

confidence: 99%

Anisotropic electrical properties of sculptured thin films

Nelson

Gilani

2013

Can. J. Phys.

View full text Add to dashboard Cite

The anisotropy in DC electrical resistivity of a chromium (Cr) sculptured thin film (STF) prepared on a glass substrate is measured and explained using a simple linear dielectric model for electrical conduction in metallic STFs. The experimental anisotropy as a function of growth angle of Cr columns on a glass substrate is in good agreement with the model. PACS Nos.: 81.05.Xj, 73.50.-h, 06.30.Bp.Résumé : L'anisotropie de la résistivité électrique dc d'une couche mince colonnaire (STF) de Cr sur un substrat de verre est ici mesurée et expliquée à l'aide d'un modèle diélectrique linéaire simple pour la conduction dans un STF métallique. L'anisotropie déterminée expérimentalement comme fonction de l'angle de croissance des colonnes de Cr sur le substrat de verre est en bon accord avec les résultats du modèle. [Traduit par la Rédaction]

show abstract

“…The interfaces of these dielectric materials with metals have been experimentally shown to be able to guide multiple SPP-wave modes at a single free-space wavelength. [10][11][12] This development has engendered the field of surface multiplasmonsics 7 and has led to surface-multiplasmonic sensing of single analytes. 13,14 The most common method to excite an SPP wave involves a prism-coupled configuration called the TurbadarKretschmann-Raether (TKR) configuration, 4, 6, 7 illustrated in Fig.…”

Section: Surface-plasmon-polariton Wavesmentioning

confidence: 99%

Influence of silver-nanoparticle layer in a chiral sculptured thin film for surface-multiplasmonic sensing

Swiontek

Lakhtakia

2015

SPIE Proceedings

View full text Add to dashboard Cite

Multiple surface-plasmon-polariton (SPP) waves can be guided by the interface of a metal and a chiral sculptured thin film (STF). It is possible to embed within the chiral STF a layer of silver nanoparticles as sites to bind recognition molecules for sensing analytes of a certain kind. Chiral STFs were deposited on aluminum thin films. 5-nm-thick layers of silver nanoparticles were deposited in the chiral STF at different depths in different samples. The samples were then deployed in the Turbadar-Kretschmann-Raether configuration to observe the effects the silver-nanoparticle layer had on the multiple SPP-wave modes in relation to the depth. We concluded that the silver-nanoparticle layer tends to shift the angular locations of the SPP-wave modes but does not necessarily affect the location of the SPP-wave modes to an extent that would render the data uninterpretable.

show abstract

Surface plasmon resonance due to the interface of a metal and a chiral sculptured thin film

Cited by 31 publications

References 13 publications

Optical sensing of analytes in aqueous solutions with a multiple surface-plasmon-polariton-wave platform

Optical sensing of analytes in aqueous solutions with a multiple surface-plasmon-polariton-wave platform

Anisotropic electrical properties of sculptured thin films

Influence of silver-nanoparticle layer in a chiral sculptured thin film for surface-multiplasmonic sensing

Contact Info

Product

Resources

About