Results 131 to 140 of about 31,465 (210)
The object beam and the reference beam interfere at the camera sensor surface and multi‐angle tomographic recording based on off‐axis digital holography. ABSTRACT Single‐frame fringe pattern analysis in digital holographic interferometry (DHI) is essential for precision phase measurement under dynamic conditions. Recent advances in deep learning within
Youxing Li +6 more
wiley +1 more source
Using a Dual‐wavelength Source for Depth Resolution Enhancement in Optical Scanning Holography
We use a wavelength selectable source to demonstrate depth resolution enhancement in an optical scanning holography system. Sectional objects separated by 2.5μm in the axial direction are reconstructed with a Fourier‐domain conjugate gradient ...
Edmund Y. Lam, Ke, J, Lam, EYM, Jun Ke
core +1 more source
A bstract We derive and test a novel holographic duality in the B-model topological string theory. The duality relates the B-model on certain Calabi-Yau three-folds to two-dimensional chiral algebras defined as gauged βγ
Kevin Costello, Davide Gaiotto
openaire +3 more sources
A multimode fiber probe collects far more of the near field than a single‐mode one, but scrambles the phase into speckle. Phase conjugation on a spatial light modulator restores the wavefront, concentrating the signal up to 165‐fold at a single detector pixel and recovering the full phase of propagating surface plasmon polaritons where conventional ...
Juntaek Oh +4 more
wiley +1 more source
The OntOMat ontology establishes a structured framework for polymer matrix fiber reinforced composite materials, integrating manufacturing processes, characterization methods, and multiscale design through the VDI/VDE 3682 formalized process description standard.
Nicolas Christ +19 more
wiley +1 more source
Toward a consistent definition of holographic entanglement entropy in de Sitter space
We investigate a new definition of holographic entanglement entropy in the framework of static patch holography for de Sitter space. Using the replica trick and twist operator formalism, we derive an entropy functional in dS3 expressed through de Sitter ...
Shan-Ming Ruan, Yu-ki Suzuki
doaj +1 more source
Abstract Particle size and physical properties such as stiffness and adhesiveness affect sinking velocity and flux in the ocean, yet conventional two‐dimensional measurements lack accuracy and mechanical information. In this study, we applied atomic force microscopy (AFM) to quantify three‐dimensional size and physical properties of marine particles ...
Y. Yamada +4 more
wiley +1 more source
Art. DWD6A fast auto calibration method for (lensless) multi-wavelength digital holography with arbitrary temporal phase-shifts is presented. The calibration algorithm is simple to calculate and needs just one additional image acquisition per ...
Fratz, M. +9 more
core +1 more source
An optically addressed nested Fourier metasurface is presented for programmable multidimensional diffraction routing without electrical interconnects. Local Fourier‐mode engineering combined with global superlattice diffraction enables on‐demand reconfigurable routing.
Jing Guo +11 more
wiley +1 more source
Extended depth of field with absolute position detection in multi-wavelength digital holography
We present a novel approach for detecting the absolute position of surfaces in multi-wavelength holography. We extent the depth of field from ~0.08 mm to ~3 mm and get the absolute position with accuracies better than 10 ...
Carl, Daniel +4 more
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