Results 41 to 50 of about 130,227 (299)
Interaction between luminance gratings and disparity gratings
Spatial Vision, 2004 It was shown from geometry and photographic measurement that the shading pattern for a sinusoidal corrugated surface of frequency f approximates to a luminance-defined grating of frequency f, 2f or f + 2f in specific relative phase. It was confirmed that a luminance grating modifies the appearance of a suprathreshold stereoscopic corrugated surface ...
Michael, Wright, Tim, Ledgeway
openaire +2 more sources
, 2015 An X-ray spectrograph consisting of radially ruled off-plane reflection gratings and silicon pore optics was tested at the Max Planck Institute for extraterrestrial Physics PANTER X-ray test facility.
Ackermann, Marcelo +14 more
core +1 more source
Generalized Bloch wave analysis for fiber and waveguide gratings [PDF]
, 1997 We have developed a generalized Bloch wave approach for the analysis of aperiodic gratings. This method yields both a macroscopic (i.e., reflection or transmission coefficient) as well as a microscopic (i.e., dispersion diagram and microstructure of the ...
Capmany, José, Peral, Eva
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Broadband Mirrors in the Near-Infrared Based on Subwavelength Gratings in SOI
IEEE Photonics Journal, 2010 We describe the design, fabrication, and characterization of high-reflectivity broadband mirrors operating in the near-infrared (700-1000 nm) wavelength range.
Armando Ricciardi +4 more
doaj +1 more source
Demonstration of 3-port grating phase relations
, 2006 We experimentally demonstrate the phase relations of 3-port gratings by investigating 3-port coupled Fabry-Perot cavities. Two different gratings which have the same 1st order diffraction efficiency but differ substantially in their 2nd order diffraction
A. Bunkowski +12 more
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Results in PhysicsA spectropolarimeter based on spatial heterodyne spectroscopy and the channeled polarimetric technique (SSHSCP) is introduced. The SSHSCP uses a polarization grating for channel modulation, meaning that the Stokes parameter is no longer dependent on the ...
Jun Chen +7 more
doaj +1 more source
Protein Binding Detection Using On-Chip Silicon Gratings
Sensors, 2011 We demonstrate a silicon gratings-based biosensor to detect functionalized protein binding on its surface. The designed silicon gratings have sensitivities up to 197 nm/RIU in detecting refractive index change and 1.61 nm per nanometer of thickness ...
Jayshri Sabarinathan +1 more
doaj +1 more source
Visually cued fear conditioning test for memory impairment related to cortical function
Neuropsychopharmacology Reports, 2020 Aim Fear conditioning tests are intended to elucidate a subject's ability to associate a conditioned stimulus with an aversive, unconditioned stimulus, such as footshock.
Kazuya Kuboyama +7 more
doaj +1 more source
Application of Raman and Photoluminescence Spectroscopy to MgO‐C Refractories
Advanced Engineering Materials, EarlyView.Visible to near infrared luminescence of MgO is studied on MgO‐C bricks and nominally pure MgO powder, with focus on two similar sharp high‐intensity signals, at 699 and 871 nm, each surrounded by symmetrical sidebands. The nature of these sidebands is investigated by temperature‐dependent spectroscopic measurements, confirming phonon involvement by ...
Julia Richter +5 more
wiley +1 more source
Fixing of volume holograms in ferroelectric K_(1-y)Li_yTa_(1-x)Nb_xO_3 [PDF]
, 1996 We report on the fixing of photorefractive volume holograms in potassium lithium tantalate niobate with ionic gratings and also with ferroelectric domain-reversed gratings.
Agranat, Aharon +5 more
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