Results 81 to 90 of about 113,174 (295)
Optics Express, 2021 Overlay metrology measures pattern placement between two layers in a semiconductor chip. The continuous shrinking of device dimensions drives the need to explore novel optical overlay metrology concepts that can address many of the existing metrology ...
C. Messinis +8 more
semanticscholar +1 more source
Photorefractive digital holographic microscopy: an application in the microdevices surfaces
Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsIn this work, we present a Photorefractive Digital Holographic Microscopy (PRDHM) technique based on the writing-reading holographic process in photorefractive Bi12TiO20 (BTO) crystal using the numerical reconstruction of the phase and amplitude image ...
Marcos R. R. Gesualdi +5 more
doaj +1 more source
Low-coherence off-axis digital holographic microscopy [PDF]
arXiv, 2021 Usually, off-axis digital holographic microscopy requires a coherent light source in order to record a full-field hologram. Nevertheless, a LASER-based illumination leads to a non-negligible coherent noise, decreasing then the imaging quality. We hereby report a simple method to reduce the coherent noise contribution using a low-temporal-coherence ...
arxiv
Histomorphometric study of human thyroid follicles with digital holographic microscopy
Revista Cubana de Investigaciones Biomédicas, 2020 Introduction: Digital holographic microscopy has allowed optical microscopy to make use of numerical and computational tools, making multiple contributions to the study of cells and tissues in different fields of medicine and other related sciences ...
Nadia Inés Infante Tavio +3 more
doaj
Opposite-view digital holographic microscopy with autofocusing capability
Scientific Reports, 2017 Digital holographic microscopy (DHM) has its intrinsic ability to refocusing a sample by numerically propagating an object wave from its hologram plane to its image plane.
Juanjuan Zheng, Peng Gao, Xiaopeng Shao
doaj +1 more source
Parallel phase-shifting digital holographic microscopy [PDF]
Biomedical Optics Express, 2010 We propose parallel phase-shifting digital holographic microscopy (PPSDHM) which has the ability of three-dimensional (3-D) motion measurement using space-division multiplexing technique. By the PPSDHM, instantaneous information of both the 3-D structure and the phase distributions of specimens can be simultaneously acquired with a single-shot exposure.
Takashi Kakue +9 more
openaire +3 more sources
Early cell death detection with digital holographic microscopy.
PLoS ONE, 2012 BackgroundDigital holography provides a non-invasive measurement of the quantitative phase shifts induced by cells in culture, which can be related to cell volume changes.
Nicolas Pavillon +6 more
doaj +1 more source
High-resolution long-working-distance reference-free holographic microscopy exploiting speckle-correlation scattering matrix [PDF]
Phys. Rev. Applied 10, 024053 (2018), 2018 Using conventional refraction-based optical lens, it is challenging to achieve both high-resolution imaging and long-working-distance condition. To increase the numerical aperture of a lens, the working distance should be compensated, and vice versa.
arxiv +1 more source
Development of Digital Holographic Microscopy by reflection for analysis of surface
Results in Physics, 2018 A methodology based on the DHM of reflection using a Michelson micro interferometer scheme is used here for dimensional controlling objects and for determining the surface profile of steel samples.
Meylí Valin Fernández +5 more
openalex +3 more sources
Holographic tracking and sizing of optically trapped microprobes in diamond anvil cells [PDF]
, 2016 We demonstrate that Digital Holographic Microscopy can be used for accurate 3D tracking and sizing of a colloidal probe trapped in a diamond anvil cell (DAC).
Bianchi, S. +5 more
core +1 more source