scholarly journals Nanobismuth: Fabrication, Optical, and Plasmonic Properties—Emerging Applications

2018 ◽  
Vol 2018 ◽  
pp. 1-23 ◽  
Author(s):  
Ye Tian ◽  
Johann Toudert
Keyword(s):  
Twentieth Century ◽  
Optical Properties ◽  
Electronic Properties ◽  
Spectral Range ◽  
Optical Potential ◽  
Near Infrared ◽  
Theoretical Calculations ◽  
Far Infrared ◽  
Free Carrier ◽  
Optical Resonances

Along the twentieth century, the electronic properties of bismuth have been widely studied, especially in relation with its magnetoresistive and thermoelectric responses. In this context, a particular emphasis has been made on electronic confinement effects in bismuth nanostructures (or nanobismuth). In the recent years, the optical properties of bismuth nanostructures are focusing a growing interest. An increasing number of reports point at the potential of such nanostructures to support plentiful optical resonances over an ultrabroad spectral range: “interband plasmonic” resonances in the ultraviolet, visible, and near-infrared; dielectric Mie resonances in mid- and far-infrared; and conventional free-carrier plasmonic resonances in the far-infrared and terahertz. With the aim to provide a comprehensive basis for exploiting the full optical potential of bismuth nanostructures, we review the current progress in their controlled fabrication, the trends reported (from theoretical calculations and experimental observations) for their optical and plasmonic response, and their emerging applications, including photocatalysis and switchable metamaterials.

Optical properties of selected native and coagulated human brain tissues in vitro in the visible and near infrared spectral range

2002 ◽  
Vol 47 (12) ◽  
pp. 2059-2073 ◽  
Author(s):  
A N Yaroslavsky ◽  
P C Schulze ◽  
I V Yaroslavsky ◽  
R Schober ◽  
F Ulrich ◽  
...  
Keyword(s):  
Optical Properties ◽  
Human Brain ◽  
Spectral Range ◽  
Near Infrared ◽  
Infrared Spectral Range ◽  
Infrared Spectral ◽  
Brain Tissues

Optical Properties of Doped Cd1−xMnxTe

1986 ◽  
Vol 89 ◽  
Author(s):  
Y. Lansari ◽  
N. C. Giles ◽  
J. F. Schetzina ◽  
P. Becia ◽  
D. Kaiser
Keyword(s):  
Optical Properties ◽  
Low Temperature ◽  
Spectral Range ◽  
Room Temperature ◽  
Far Infrared ◽  
Optical Quality ◽  
Structural Quality ◽  
Reflectance Measurements ◽  
Low Temperature Photoluminescence

AbstractThe introduction of phosphorus and arsenic dopants into bulk Cd1−xMnx Te crystals grown by the Bridgman-Stockbarger technique has been studieA-with respect to the resulting optical properties. Samples with a Mn composition in the range 0.10 < x < 0.30, both as-grown and annealed, were investigated. A combination of room temperature transmittance and reflectance measurements over the spectral range from the ultraviolet to the far infrared has been used to gain information concerning the structural quality of the samples. Low temperature photoluminescence measurements (1.6−5 K) were used to determine optical quality and excitonic energies.

Optical properties of normal and cancerous human skin in the visible and near-infrared spectral range

2006 ◽  
Vol 11 (6) ◽  
pp. 064026 ◽  
Author(s):  
Elena Salomatina ◽  
Brian Jiang ◽  
John Novak ◽  
Anna N. Yaroslavsky
Keyword(s):  
Optical Properties ◽  
Human Skin ◽  
Spectral Range ◽  
Near Infrared ◽  
Infrared Spectral Range ◽  
Infrared Spectral

scholarly journals Spectral Optical Properties of Rabbit Brain Cortex Between 200 and 1000 nm

2021 ◽  
Author(s):  
Tânia Gonçalves ◽  
Inês Soraia Martins ◽  
Hugo Silva ◽  
Valery Tuchin ◽  
Luís Oliveira
Keyword(s):  
Optical Properties ◽  
Spectral Range ◽  
Brain Cortex ◽  
Near Infrared ◽  
Ex Vivo ◽  
Biological Tissues ◽  
Rabbit Brain ◽  
Rabbit Brain Cortex ◽  
Infrared Spectral ◽  
The Brain

The knowledge of the optical properties of biological tissues in a wide spectral range is highly important for the development of noninvasive diagnostic or treatment procedures. The absorption coefficient is one of those properties, from which various information about tissue components can be retrieved. Using transmittance and reflectance spectral measurements acquired from ex vivo rabbit brain cortex samples, allowed to calculate its optical properties in the ultraviolet to the near infrared spectral range. Melanin and lipofuscin, the two pigments that are related to the ageing of tissues and cells were identified in the cortex absorption. By subtracting the absorption of these pigments from the absorption of the brain cortex, it was possible to evaluate the true ratios for the DNA/RNA and hemoglobin bands in the cortex &ndash; 12.33 fold (at 260 nm), 12.02 fold (at 411 nm) and 4.47 fold (at 555 nm). Due to the fact that the accumulation of melanin and lipofuscin increases with the ageing of the brain tissues and are related to the degeneration of neurons and their death, further studies should be performed to evaluate the evolution of pigment accumulation in the brain to prevent the development of Alzheimer, Parkinson and stroke pathologies in the brain.

scholarly journals Optical and electronic properties of lithium thiogallate (LiGaS2): experiment and theory

RSC Advances ◽  
2020 ◽  
Vol 10 (45) ◽  
pp. 26843-26852
Author(s):  
Tuan V. Vu ◽  
A. A. Lavrentyev ◽  
B. V. Gabrelian ◽  
Dat D. Vo ◽  
Pham D. Khang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Electronic Structure ◽  
Electronic Properties ◽  
Theoretical Calculations ◽  
Optical And Electronic Properties

We report the relation between the optical properties and electronic structure of lithium thiogallate (LiGaS2) by performing XPS and XES measurements and theoretical calculations.

scholarly journals Spectral Optical Properties of Rabbit Brain Cortex between 200 and 1000 nm

Photochem ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 190-208
Author(s):  
Tânia M. Gonçalves ◽  
Inês S. Martins ◽  
Hugo F. Silva ◽  
Valery V. Tuchin ◽  
Luís M. Oliveira
Keyword(s):  
Optical Properties ◽  
Spectral Range ◽  
Brain Cortex ◽  
Near Infrared ◽  
Biological Tissues ◽  
Optical Methods ◽  
Brain Diseases ◽  
Rabbit Brain ◽  
Rabbit Brain Cortex ◽  
The Brain

The knowledge of the optical properties of biological tissues in a wide spectral range is highly important for the development of noninvasive diagnostic or treatment procedures. The absorption coefficient is one of those properties, from which various information about tissue components can be retrieved. Using transmittance and reflectance spectral measurements acquired from ex vivo rabbit brain cortex samples allowed to calculate its optical properties in the ultraviolet to the near infrared spectral range. Melanin and lipofuscin, the two pigments that are related to the aging of tissues and cells were identified in the cortex absorption. By subtracting the absorption of these pigments from the absorption of the brain cortex, it was possible to evaluate the true ratios for the DNA/RNA and hemoglobin bands in the cortex—12.33-fold (at 260 nm), 12.02-fold (at 411 nm) and 4.47-fold (at 555 nm). Since melanin and lipofuscin accumulation increases with the aging of the brain tissues and are related to the degeneration of neurons and their death, further studies should be performed to evaluate the evolution of pigment accumulation in the brain, so that new optical methods can be developed to aid in the diagnosis and monitoring of brain diseases.

Optical properties of blood in the near-infrared spectral range

1996 ◽  
Author(s):  
Anna N. Yaroslavsky ◽  
Ilya V. Yaroslavsky ◽  
Thomas Goldbach ◽  
Hans-Joachim Schwarzmaier
Keyword(s):  
Optical Properties ◽  
Spectral Range ◽  
Near Infrared ◽  
Infrared Spectral Range ◽  
Infrared Spectral

scholarly journals Articular cartilage optical properties in the near-infrared (NIR) spectral range vary with depth and tissue integrity

2021 ◽  
Author(s):  
Bilour Khan ◽  
Iman Kafian-Attari ◽  
Ervin Nippolainen ◽  
Rubina Shaikh ◽  
Dmitry Semenov ◽  
...  
Keyword(s):  
Optical Properties ◽  
Articular Cartilage ◽  
Spectral Range ◽  
Near Infrared ◽  
Tissue Integrity
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