Results 11 to 20 of about 938,861 (316)

Phantoms for performance assessment of optical coherence tomography systems [PDF]

open access: yes, 2012
In this paper, we describe the procedures to make epoxy resin and agarose phantoms designed using Mie scattering calculations. The phantoms are constructed to be used in the estimation of point spread function (PSF) of an optical coherence tomography ...
S. A. Hojjatoleslami   +16 more
core   +1 more source

Characterization of optical fiber imaging bundles for swept-source optical coherence tomography [PDF]

open access: yes, 2011
Fiber imaging bundles have been investigated for use in endoscopic optical coherence tomography (OCT) systems, to obviate the requirement for scanning components within the endoscope probe section.
Helen D. Ford   +3 more
core   +1 more source

Nonlinear optical crystalline nature bis (2,6-diaminopyridinium) hydrogen phthalate nitrate monohydrate (APPN): Development and its phase matching nature

open access: yesResults in Optics, 2021
Bis (2,6-Diaminopyridinium) single crystal hydrogen phthalate nitrate monohydrate (APPN) has been successfully cultivated via the growth method of slow evaporation solution. A single crystal X-ray diffraction analysis has confirmed the lattice parameters
P. Vivek   +7 more
doaj   +1 more source

Mid-infrared transmission properties of step index and large mode area ZnSe microstructured optical fibers [PDF]

open access: yes, 2012
ZnSe microstructured fibers have been designed and fabricated using silica capillaries and an air-silica photonic band-gap optical fiber as high-pressure microfluidic templates for semiconductor growth via chemical fluid deposition.
Peacock, A.C.   +13 more
core   +1 more source

Nontoxic pyrite iron sulfide nanocrystals as second electron acceptor in PTB7:PC71BM-based organic photovoltaic cells

open access: yesBeilstein Journal of Nanotechnology, 2019
Herein, we report the synthesis of nontoxic pyrite iron sulfide (FeS2) nanocrystals (NCs) using a two-pot method. Moreover, we study the influence of these NCs incorporated into the PTB7:PC71BM active layer of bulk-heterojunction ternary organic ...
Olivia Amargós-Reyes   +7 more
doaj   +1 more source

Optical properties of Pr and Eu-doped SrAl12O19: A theoretical study [PDF]

open access: yes, 2015
This paper describes a computational study of extrinsic defect and optical properties of SrAl12O19 induced by trivalent rare earth dopants. Solution energies for a range of possible doping mechanisms are calculated, and predictions made of doping sites ...
Jackson
core   +1 more source

Synthesis, Optical and Electrical Properties of ZnFe2O4 Nanocomposites

open access: yesNanomaterials and Nanotechnology, 2012
ZnFe2O4 nanocomposites have been prepared by a simple co‐precipitation method. The prepared samples were characterized by Scanning Electron Microscopy (SEM), Powder X‐ray Diffraction (XRD), Energy Disperse X‐ray Analysis (EDX), Transmission electron ...
G.S. Yashavanth Kumar   +4 more
doaj   +1 more source

Quantitative compressive optical coherence elastography using structural OCT imaging and optical palpation to measure soft contact lens mechanical properties

open access: yes, 2021
In this study, the principle of optical palpation was applied to a compression optical coherence elastography (OCE) method using spectral domain optical coherence tomography (OCT).
Alonso-Caneiro, D   +3 more
core   +1 more source

Gallium ion implantation greatly reduces thermal conductivity and enhances electronic one of ZnO nanowires

open access: yesAIP Advances, 2014
The electrical and thermal conductivities are measured for individual zinc oxide (ZnO) nanowires with and without gallium ion (Ga+) implantation at room temperature.
Minggang Xia   +7 more
doaj   +1 more source

Physical and Methodological Perspectives on the Optical Properties of Biological Samples: A Review

open access: yesPhotonics, 2021
The optical properties of biological systems can be measured by imaging and microscopy methodologies. The use of X-rays, γ-radiation and electron microscopy provides information about the contents and functions of the systems. The need to develop imaging
George I. Lambrou   +4 more
doaj   +1 more source

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