scholarly journals Optical Index Matching, Flexible Electrospun Substrates for Seamless Organic Photocapacitive Sensors

2021 ◽  
pp. 2000543
Author(s):  
Timo Grothe ◽  
Tobias Böhm ◽  
Karim Habashy ◽  
Oliya S. Abdullaeva ◽  
Jennifer Zablocki ◽  
...  
Keyword(s):  
Optical Index ◽  
Index Matching

scholarly journals Optical detection enhancement in porous volumetric microfluidic capture elements using refractive index matching fluids

The Analyst ◽  
2015 ◽  
Vol 140 (16) ◽  
pp. 5724-5731 ◽  
Author(s):  
M. S. Wiederoder ◽  
L. Peterken ◽  
A. X. Lu ◽  
O. D. Rahmanian ◽  
S. R. Raghavan ◽  
...  
Keyword(s):  
Refractive Index ◽  
Optical Detection ◽  
Detection Limits ◽  
Reaction Site ◽  
Microfluidic Systems ◽  
Optical Index ◽  
Site Density ◽  
Index Matching ◽  
Refractive Index Matching ◽  
Detection Enhancement

Optical index matching fluids enable porous volumetric capture elements in microfluidic systems to take advantage of higher reaction site density and decreased diffusion lengths, enhancing detection limits and throughput compared with planar capture surfaces.

scholarly journals Optical Index Matching, Flexible Electrospun Substrates for Seamless Organic Photocapacitive Sensors

2021 ◽  
Vol 258 (6) ◽  
pp. 2170021
Author(s):  
Timo Grothe ◽  
Tobias Böhm ◽  
Karim Habashy ◽  
Oliya S. Abdullaeva ◽  
Jennifer Zablocki ◽  
...  
Keyword(s):  
Optical Index ◽  
Index Matching

scholarly journals In-Vitro Experimental Modeling of Oscillatory Respiratory Flow in a CT-Scanned OSAHS Tract

2020 ◽  
Vol 10 (22) ◽  
pp. 7979
Author(s):  
Zhenshan Zhu ◽  
Yaping Ju ◽  
Chuhua Zhang
Keyword(s):  
Flow Velocity ◽  
Clinical Medicine ◽  
Experimental Modeling ◽  
Respiratory Disorder ◽  
Optical Index ◽  
Respiratory Flow ◽  
Index Matching ◽  
Obstructive Sleep ◽  
Eta Model

Obstructive sleep apnea-hypopnea syndrome (OSAHS) is a highly prevalent respiratory disorder. The knowledge of respiratory flow is an essential prerequisite for the establishment and development of OSAHS physiology, pathology, and clinical medicine. We made the first in-vitro experimental attempt to measure the oscillatory flow velocity in a computed tomography (CT) scanned extra-thoracic airway (ETA) model with OSAHS by using the particle image velocimetry (PIV) technique. In order to mimic respiration flow, three techniques were adopted to address difficulties in in-vitro experimental modeling: (1) fabricating the obstructive ETA measurement section with the CT-scanned data of an OSAHS patient airway; (2) maintaining the measurement accuracy by using the optical index-matching technique; (3) reproducing the oscillatory respiratory flow rates with the compiled clinical data of transient tidal volumes. The in-vitro measurements of oscillatory respiratory flow velocity manifested the time evolution of the complex OSAHS flow patterns, and the potential wall collapse of the ETA model with OSAHS.

Interferometric (Fourier-Spectroscopic) Measurement of Electron Energy Distributions

1990 ◽  
Vol 48 (2) ◽  
pp. 110-111 ◽  
Author(s):  
F. Hasselbach ◽  
A. Schäfer
Keyword(s):  
Group Velocity ◽  
Wave Packets ◽  
Index Of Refraction ◽  
Electron Wave ◽  
Fringe Contrast ◽  
Faraday Cage ◽  
Optical Index ◽  
Wien Filter ◽  
Coherent Wave ◽  
Electric And Magnetic Fields

Möllenstedt and Wohland proposed in 1980 two methods for measuring the coherence lengths of electron wave packets interferometrically by observing interference fringe contrast in dependence on the longitudinal shift of the wave packets. In both cases an electron beam is split by an electron optical biprism into two coherent wave packets, and subsequently both packets travel part of their way to the interference plane in regions of different electric potential, either in a Faraday cage (Fig. 1a) or in a Wien filter (crossed electric and magnetic fields, Fig. 1b). In the Faraday cage the phase and group velocity of the upper beam (Fig.1a) is retarded or accelerated according to the cage potential. In the Wien filter the group velocity of both beams varies with its excitation while the phase velocity remains unchanged. The phase of the electron wave is not affected at all in the compensated state of the Wien filter since the electron optical index of refraction in this state equals 1 inside and outside of the Wien filter.

scholarly journals Donor-Recipient Body Mass Index Matching in Lung Transplantation

2021 ◽  
Vol 40 (4) ◽  
pp. S362
Author(s):  
W.R. Lightle ◽  
A. Hallett ◽  
J. Motter ◽  
G. Loor ◽  
P. Carrott ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Lung Transplantation ◽  
Body Mass ◽  
Index Matching
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