نتایج جستجو برای: optical thicknesses are estimated finally using these calculated optical thicknesses
تعداد نتایج: 8022985 فیلتر نتایج به سال:
PURPOSE To characterize qualitative and quantitative features of the choroid in normal eyes using enface swept-source optical coherence tomography (SS-OCT). METHODS Fifty-two eyes of 26 consecutive normal subjects were prospectively recruited to obtain multiple three-dimensional 12 x 12 mm volumetric scans using a long-wavelength high-speed SS-OCT prototype. A motion-correction algorithm merg...
In this paper, the designing and nano-manufacturing of the SnO2 sensors by the Dip-Coating method is reported to detect CO2 in a gaseous environment by its characteristic absorption. In addition, in order to prepare the Sol-Gel solution, SnCl2 as a primary material with different concentration is selected to deposit in diverse thicknesses. After the SnO2 deposited thin-film with different ...
The vibrational spectra of CdSe/CdS superlattices (SLs) with different layer thicknesses are calculated from first principles within the density functional theory. It is shown that, along folded acoustic and confined optical modes, a number modes appear in SLs. In structures minimum thickness one layers, microscopic interface similar to local gap crystals appear. An analysis projections eigenve...
Article history: Received 18 March 2016 Revised 16 July 2016 Accepted in revised form 28 July 2016 Available online xxxx Photoluminescence piezospectroscopy (PLPS) was used as a non-destructive technique for the measurement of residual stresses within the thermally grown oxide (TGO) layer beneath plasma-spray thermal barrier coatings (TBC). The technique has proved to be very effective for such...
the present study reports an analysis of response articles in four different disciplines in the social sciences, i.e., linguistics, english for specific purposes (esp), accounting, and psychology. the study has three phases: micro analysis, macro analysis, and e-mail interview. the results of the micro analysis indicate that a three-level linguistic pattern is used by the writers in order to cr...
Oblique impact of cylindrical projectiles with blunt, conical and hemispherical noses with different aspect ratios on metallic targets with different thicknesses is investigated and penetration critical angle is determined. Circular targets of Al1100-H12 had a diameter of 240mm and thicknesses of 1, 2 and 3mm. Steel work hardened projectiles with blunt, conical and hemispherical noses are made ...
This paper reports on the design and implementation of thin film multilayer dielectric to form Bragg reflectors on the sidewalls of micromachined atomic cells. Due to deposition shadowing, significant variations in the thicknesses of the thin films are encountered when the layers are deposited using PECVD. These gradients in thickness may limit optical performance of the reflector in atomic cel...
PURPOSE The goal of this cross-sectional observational study was to quantify the pattern-shift visual evoked potentials (VEP) and the thickness as well as the volume of retinal layers using optical coherence tomography (OCT) across a cohort of Parkinson's disease (PD) patients and age-matched controls. METHODS Forty-three PD patients and 38 controls were enrolled. All participants underwent a...
We present a new approach for making interconnected hemispherical shells by stripping Au from templates of anodized aluminum, where the metal thickness can be adjusted without affecting the outer radius of curvature, film roughness and the sharpness of the hemisphere contact areas. This provides increased understanding of the surface plasmon resonances (SPRs) observed for Film-On-Nanospheres (F...
The technique of molecular beam epitaxy has recently been used to demonstrate the growth of terahertz frequency GaAs/AlGaAs quantum cascade lasers (QCL) with Watt-level optical output powers. In this paper, we discuss the critical importance of achieving accurate layer thicknesses and alloy compositions during growth, and demonstrate that precise growth control as well as run-to-run growth repr...
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