Results 71 to 80 of about 2,557,405 (292)
Photonics, 2023 During polarization holographic recording in azopolymer thin films, usually together with the volume anisotropic grating, a surface relief grating (SRG) is also formed.
Georgi Mateev +8 more
doaj +1 more source
On-chip differential interference contrast microscopy using lensless digital holography. [PDF]
, 2010 We introduce the use of a birefringent crystal with lensless digital holography to create an on-chip differential interference contrast (DIC) microscope.
Isikman, Serhan O +3 more
core +1 more source
Advanced Science, EarlyView.Reconfigurable metasurfaces typically require human intervention or complex, resource‐heavy processes. This innovative self‐adaptive metasurface senses an incident wave's direction, adjusting reflection in real‐time using a simple electronics module. It eliminates external controllers, reducing response time, energy consumption, and costs. Applications
Bo‐Wen Ren +4 more
wiley +1 more source
Tomographic flow cytometry by digital holography. [PDF]
Light Sci Appl, 2017 High-throughput single-cell analysis is a challenging task. Label-free tomographic phase microscopy is an excellent candidate to perform this task. However, in-line tomography is very difficult to implement in practice because it requires a complex set ...
Merola F +10 more
europepmc +2 more sources
Measurement of cavitation in a sliding bearing using digital holography [PDF]
, 2014 This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014) +3 more
core
Four-dimensional dynamic flow measurement by holographic particle image velocimetry [PDF]
, 2005 The ultimate goal of holographic particle image velocimetry (HPIV) is to provide space- and time-resolved measurement of complex flows. Recent new understanding of holographic imaging of small particles, pertaining to intrinsic aberration and noise in ...
Meng, Hui, Pu, Ye
core +2 more sources
Meta‐Dispersive 3D Chromatic Confocal Measurement
Advanced Science, EarlyView.A dispersive metalens (DML) combined with the chromatic confocal method is achieved for high‐precision 3D measurement in this study. This approach enables both high axial and lateral resolutions in compact optics. The development offers a promising route toward precise, miniaturized depth sensing for future applications in microstructure inspection and
Jiajun Wu +8 more
wiley +1 more source
Backscatter digital holography of microparticles
Optics Express, 2013 This work investigates a method for digital holographic imaging of microparticles. Traditional digital holographic techniques use a particle's forward scattered light to form the hologram, whereas here we use the backscattered light. Images of a particle are then computationally reconstructed from the backscatter hologram, and several examples of such ...
Nava R. Subedi +2 more
openaire +2 more sources
Convolutional Neural Network-Based Regression for Depth Prediction in Digital Holography [PDF]
International Symposium on Industrial Electronics, 2018 Digital holography enables us to reconstruct objects in three-dimensional space from holograms captured by an imaging device. For the reconstruction, we need to know the depth position of the recoded object in advance.
T. Shimobaba, T. Kakue, T. Ito
semanticscholar +1 more source
Robust Digital Holography For Ultracold Atom Trapping
, 2012 We have formulated and experimentally demonstrated an improved algorithm for design of arbitrary two-dimensional holographic traps for ultracold atoms.
A Ashkin +32 more
core +1 more source