Near infrared optical applications in molecular imaging

2004 ◽  
Vol 23 (4) ◽  
pp. 58-66 ◽  
Author(s):  
U. Mahmood
Keyword(s):  
Molecular Imaging ◽  
Near Infrared ◽  
Optical Applications

Black Silicon Germanium (SiGe) for Extended Wavelength Near Infrared Electro-optical Applications

2010 ◽  
Author(s):  
Fred Semendy ◽  
Patrick Taylor ◽  
Gregory Meissner ◽  
Priyalal Wijewarnasuriya
Keyword(s):  
Silicon Germanium ◽  
Near Infrared ◽  
Black Silicon ◽  
Optical Applications

scholarly journals Nano-Crystallization of Ln-Fluoride Crystals in Glass-Ceramics via Inducing of Yb3+ for Efficient Near-Infrared Upconversion Luminescence of Tm3+

Nanomaterials ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 1033
Author(s):  
Jianfeng Li ◽  
Yi Long ◽  
Qichao Zhao ◽  
Shupei Zheng ◽  
Zaijin Fang ◽  
...  
Keyword(s):  
Crystal Structures ◽  
Near Infrared ◽  
Upconversion Luminescence ◽  
Glass Ceramics ◽  
Upconversion Emission ◽  
Ceramic Composites ◽  
Wide Range ◽  
Transmission Window ◽  
Optical Applications ◽  
Upconversion Emissions

Transparent glass-ceramic composites embedded with Ln-fluoride nanocrystals are prepared in this work to enhance the upconversion luminescence of Tm3+. The crystalline phases, microstructures, and photoluminescence properties of samples are carefully investigated. KYb3F10 nanocrystals are proved to controllably precipitate in the glass-ceramics via the inducing of Yb3+ when the doping concentration varies from 0.5 to 1.5 mol%. Pure near-infrared upconversion emissions are observed and the emission intensities are enhanced in the glass-ceramics as compared to in the precursor glass due to the incorporation of Tm3+ into the KYb3F10 crystal structures via substitutions for Yb3+. Furthermore, KYb2F7 crystals are also nano-crystallized in the glass-ceramics when the Yb3+ concentration exceeds 2.0 mol%. The upconversion emission intensity of Tm3+ is further enhanced by seven times as Tm3+ enters the lattice sites of pure KYb2F7 nanocrystals. The designed glass ceramics provide efficient gain materials for optical applications in the biological transmission window. Moreover, the controllable nano-crystallization strategy induced by Yb3+ opens a new way for engineering a wide range of functional nanomaterials with effective incorporation of Ln3+ ions into fluoride crystal structures.

Near-Infrared-Fluorescence-Enhanced Molecular Imaging of Live Cells on Gold Substrates

2011 ◽  
Vol 50 (20) ◽  
pp. 4644-4648 ◽  
Author(s):  
Guosong Hong ◽  
Scott M. Tabakman ◽  
Kevin Welsher ◽  
Zhuo Chen ◽  
Joshua T. Robinson ◽  
...  
Keyword(s):  
Molecular Imaging ◽  
Near Infrared ◽  
Live Cells ◽  
Near Infrared Fluorescence ◽  
Gold Substrates

scholarly journals Targeted molecular imaging of TLR4 in hepatocellular carcinoma using zwitterionic near-infrared fluorophores

2019 ◽  
Vol 9 (9) ◽  
pp. 1548-1555 ◽  
Author(s):  
Yuanyuan Ji ◽  
Zhidong Wang ◽  
Kai Bao ◽  
G. Kate Park ◽  
Homan Kang ◽  
...  
Keyword(s):  
Hepatocellular Carcinoma ◽  
Molecular Imaging ◽  
Near Infrared ◽  
Targeted Molecular Imaging

Development of a New Glass for both Visible and Near-Infrared Optical Applications

2018 ◽  
Vol 786 ◽  
pp. 224-235
Author(s):  
Hytham Abdelghany El-Ghany
Keyword(s):  
Optical Materials ◽  
Nonlinear Optical ◽  
Near Infrared ◽  
Nonlinear Optical Materials ◽  
Melt Quenching ◽  
Nd:Yag Lasers ◽  
Near Ir ◽  
Prepared Glass ◽  
Optical Applications ◽  
Electric Susceptibility

A glass system of composition 40P2O5-40ZnO-(20-x)Na2O-xCdO (where, x = 1, 2, 3, 4, 5 and 6 mol%) was prepared using the conventional melt quenching technique. The glass formability of the prepared samples was inspected using XRD technique. Archimedes’ method was used to determine the density of the prepared glass samples then the molar volume was calculated. The optical spectroscopic investigations of the prepared glass samples were carried out over the spectral range (190-2500 nm). The proposed glass showed a successive transparency in both visible and near-IR ranges of spectrum till 2500 nm with considerably high transmission of about 78%. The refractive index of the glass samples with some other useful parameters such as dielectric constant, electric susceptibility and electronic polarizability of the prepared glass were evaluated. The results suggest the practicality of utilizing such new glass in the fabrication of optical supplies such as lenses and optical windows used for Nd:YAG lasers. The metallization criteria data of the prepared glass propose a good basis for predicting new nonlinear optical materials.

scholarly journals Near-Infrared Dyes: Probe Development and Applications in Optical Molecular Imaging

2011 ◽  
Vol 8 (4) ◽  
pp. 521-534 ◽  
Author(s):  
Donald D. Nolting ◽  
John C. Gore ◽  
Wellington Pham
Keyword(s):  
Molecular Imaging ◽  
Near Infrared ◽  
Optical Molecular Imaging
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