The shape of an object is reconstructed from measurements of the diffraction pattern observed in a monochromatic sound wave which irradiates the object. Both the amplitude and phase of sounds at a discrete set of points near the object (a rectangular lattice of suitable dimensions) are measured ...
Figure 1f displays the weight percentages of the monoclinic and tetragonal phases in the as-synthesized CZ particles, as-milled CZ/Al composite powders, and the as-fabricated CZ/Al composite. The corresponding X-ray diffraction (XRD) pattern is shown in Supplementary Fig. 5. The austenite start...
Chapter 2 surveys the related literature in the fields of polarisation, reflectance function analysis, shape recovery, and pattern recognition. We also discuss other shape recovery techniques, such as shape from shading, photometric stereo, ... L Zhang - 《University of York》 被引量: 0发表: 20...
Far Field Pattern (FFP) The intensity distribution of light emitted to a place far enough away from the chip end face is called the far field pattern. Laser Beam is not perfectly linear, but advances while spreading out by diffraction. Since the resonators (active layer and stripe) within th...
This is exactly the case observed here for the 51°, in which certain choices of the first pillar diameter create a resonance that severely reduces the first order diffraction efficiency for TE light. We applied shape optimization to two metagratings differing only by the choice of the first ...
Laser Beam Shape : Laser Beam is not perfectly linear. The intensity distribution of light emitted to a place far enough away from the chip end face is called the far field pattern.
Far Field Pattern (FFP) The intensity distribution of light emitted to a place far enough away from the chip end face is called the far field pattern. Laser Beam is not perfectly linear, but advances while spreading out by diffraction. ...
(CuKα) for the non-stretched sample, peaks at 2θ = 21.6° and 24° were observed, which were consistent with the diffraction of the 110 and 200 lattice planes of orthorhombic crystalline PCL (Fig.2C). In the stretched samples, the peaks corresponding to 90° to the stretched ...
the deflection unit, and a processing unit (7) configured to determine the shape of the object based on an image of the object captured by the image sensing unit, wherein the deflection unit comprises a diffraction grating configured to diffract the pattern light emitted from the optical system...
The creation of diffraction gratings and planar optics requires tailoring the surface morphology on the same spatial scales of light wavelength, which is currently done by lithography — the transfer of a pattern to a surface (or “substrate”) using a radiation source, such as a beam ...