Results 61 to 70 of about 25,876 (202)
Holographic microscopy reconstruction in both object and image half spaces with undistorted 3D grid [PDF]
, 2015 We propose an holographic microscopy reconstruction method, which propagates the hologram, in the object half space, in the vicinity of the object. The calibration yields reconstructions with an undistorted reconstruction grid i.e.
Alexandre, Danier +3 more
core +3 more sources
Recent Advances in Programmable Metasurfaces and Meta‐Devices
Advanced Electronic Materials, EarlyView.Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao +4 more
wiley +1 more source
Direct Inversion of Digital 3D Fraunhofer Holography Maps
, 2015 The Differential Fourier Holography (DFH) gives an exact mathematical solution of the inverse problem of diffraction in the Fraunhofer regime. After the first publication [1] the Differential Fourier Holography was successfully applied in many ...
Förster, Eckhart, Podorov, Sergey G.
core +1 more source
Lensfree super-resolution holographic microscopy using wetting films on a chip. [PDF]
, 2011 We investigate the use of wetting films to significantly improve the imaging performance of lensfree pixel super-resolution on-chip microscopy, achieving < 1 µm spatial resolution over a large imaging area of ~24 mm(2).
Bishara, Waheb +2 more
core +1 more source
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.Quantitative phase maps of single cells recorded in flow cytometry modality feed a hierarchical architecture of machine learning models for the label‐free identification of subtypes of ovarian cancer. The employment of a priori clinical information improves the classification performance, thus emulating the clinical application of liquid biopsy during ...
Daniele Pirone +11 more
wiley +1 more source
Portable Filter-Free Lens-Free Incoherent Digital Holography System
PhotonicsA portable incoherent digital holography system without a polarization filter or a refractive lens was developed. Phase-shifted self-interference incoherent holograms of light diffracted from an object were generated without attenuation due to a ...
Tatsuki Tahara
doaj +1 more source
Digital phase conjugation of second harmonic radiation emitted by nanoparticles in turbid media [PDF]
, 2010 We demonstrate focusing coherent light on a nanoparticle through turbid media based on digital optical phase conjugation of second harmonic generation (SHG) field from the nanoparticle.
Grange, Rachel +3 more
core +2 more sources
Advanced Intelligent Systems, EarlyView.HTFC gets 3D refractive index tomograms of flowing cells. Label‐free monocytes are engineered to express patterns of cytoplasmic vacuoles. From the tomogram, an efficient dimensionality reduction is operated. Interpretable features are extracted to classify the expression severity of phenotypes coexisting in each cell, visually represented by a seven ...
Marika Valentino +9 more
wiley +1 more source
Measurements of the Characteristics of Transparent Material Using Digital Holography
Advances in Materials Science and Engineering, 2013 Digital holography is applied to measure the characteristics of transparent material. A digital hologram recording system to measure the surface of transparent material was established, and the digital holograms of transparent object were obtained in ...
Ding Yu +3 more
doaj +1 more source
Providing a Visual Understanding of Holography Through Phase Space Representations
Applied Sciences, 2020 Digital holograms are a prime example for signals, which are best understood in phase space—the joint space of spatial coordinates and spatial frequencies. Many characteristics, as well as optical operations can be visualized therein with so called phase
Tobias Birnbaum +2 more
doaj +1 more source