Surface enhanced infrared spectroscopy using metal oxide plasmonic antenna arrays.

05:09 EDT 2nd September 2014 | BioPortfolio

Summary of "Surface enhanced infrared spectroscopy using metal oxide plasmonic antenna arrays."

We successfully demonstrate surface enhanced infrared spectroscopy (SEIRS) using arrays of indium-tin oxide (ITO) plasmonic nanoantennas. The ITO antennas show a strongly reduced plasmon wavelength, which holds promise for ultracompact antenna arrays and extremely subwavelength metamaterials. The strong plasmon confinement and reduced antenna cross section allows ITO antennas to be integrated at extremely high densities with no loss in performance due to long-range transverse interactions. By further reducing the spacing of antennas in the arrays we access the regime of plasmonic near field coupling where the response is enhanced for both Au and ITO devices. Ultracompact ITO antennas with high spatial and spectral selectivity in spectroscopic applications offer a viable new platform for infrared plasmonics, which may be combined with other functionalities of these versatile materials in devices.

Affiliation

Journal Details

This article was published in the following journal.

Name: Nano letters
ISSN: 1530-6992
Pages:

Links

PubMed Articles [15995 Associated PubMed Articles listed on BioPortfolio]

Metal/Semiconductor Hybrid Nanostructures for Plasmon-Enhanced Applications.

Hybrid nanostructures composed of semiconductor and plasmonic metal components are receiving extensive attention. They display extraordinary optical characteristics that are derived from the simultane...

Surfactant-Free Nonaqueous Synthesis of Plasmonic Molybdenum Oxide Nanosheets with Enhanced Catalytic Activity for Hydrogen Generation from Ammonia Borane under Visible Light.

Plasmonic materials have drawn emerging interest, especially in nontraditional semiconductor nanostructures with earth-abundant elements and low resistive loss. However, the actualization of highly ef...

Plasmofluidic single-molecule surface-enhanced Raman scattering from dynamic assembly of plasmonic nanoparticles.

Single-molecule surface-enhanced Raman scattering (SM-SERS) is one of the vital applications of plasmonic nanoparticles. The SM-SERS sensitivity critically depends on plasmonic hot-spots created at th...

Plasmonic Nanoantenna Arrays for Surface-Enhanced Raman Spectroscopy of Lipid Molecules Embedded in a Bilayer Membrane.

We demonstrate a strategy for surface enhanced Raman spectroscopy (SERS) of supported lipid membranes with arrays of plasmonic nanoantennas. Colloidal lithography refined with plasma etching is used t...

Plasmonics with two-dimensional conductors.

A wealth of effort in photonics has been dedicated to the study and engineering of surface plasmonic waves in the skin of three-dimensional bulk metals, owing largely to their trait of subwavelength c...

Clinical Trials [1512 Associated Clinical Trials listed on BioPortfolio]

Assessment of Near Infrared Spectroscopy as a Diagnostic Tool in Acute Compartment Syndrome

The purpose of this study is to define the reliability and accuracy of Near Infrared Spectroscopy (NIRS) in the detection of intra-compartmental tissue perfusion in injured and noninjured ...

Study of Near Infrared Spectroscopy (NIRS) and Intravascular Ultrasound (IVUS) Combination Coronary Catheter

This study is designed to evaluate the technical performance and clinical handling of a coronary catheter that includes two imaging techniques. The catheter being evaluated performs near ...

SPECTACL: SPECTroscopic Assessment of Coronary Lipid

The purpose of this study is to evaluate a near-infrared (NIR) spectroscopy system that has been designed to identify the chemical composition of coronary artery plaques in patients underg...

A Comparison of Two Metal Surface Finishes on Femoral Components in Hip Arthroplasty

The purpose of this study is to compare metal surface finishes (proximal-coated titanium surface versus mid-coated titanium surface) on femoral components in hip arthroplasty.

NIRS and Doppler to Predict NEC in Risk Neonates

The main objective is to evaluate the interest of cerebro-splanchnic oxygenation ratio (CSOR) for early diagnosis of necrotizing enterocolitis (NEC) in neonates with rectal bleeding and/or...

Medical and Biotech [MESH] Definitions

A noninvasive technique that uses the differential absorption properties of hemoglobin and myoglobin to evaluate tissue oxygenation and indirectly can measure regional hemodynamics and blood flow. Near-infrared light (NIR) can propagate through tissues and at particular wavelengths is differentially absorbed by oxygenated vs. deoxygenated forms of hemoglobin and myoglobin. Illumination of intact tissue with NIR allows qualitative assessment of changes in the tissue concentration of these molecules. The analysis is also used to determine body composition.

A spectroscopic technique in which a range of wavelengths is presented simultaneously with an interferometer and the spectrum is mathematically derived from the pattern thus obtained.

A technique applicable to the wide variety of substances which exhibit paramagnetism because of the magnetic moments of unpaired electrons. The spectra are useful for detection and identification, for determination of electron structure, for study of interactions between molecules, and for measurement of nuclear spins and moments. (From McGraw-Hill Encyclopedia of Science and Technology, 7th edition) Electron nuclear double resonance (ENDOR) spectroscopy is a variant of the technique which can give enhanced resolution. Electron spin resonance analysis can now be used in vivo, including imaging applications such as MAGNETIC RESONANCE IMAGING.

Measurement of the regional temperature of the body or an organ by infrared sensing devices, based on self-emanating infrared radiation.

That portion of the electromagnetic spectrum usually sensed as heat. Infrared wavelengths are longer than those of visible light, extending into the microwave frequencies. They are used therapeutically as heat, and also to warm food in restaurants.

Search BioPortfolio:
Advertisement
Advertisement

Searches Linking to this Article