Results 81 to 90 of about 2,557,405 (292)

Lensfree on-chip microscopy over a wide field-of-view using pixel super-resolution. [PDF]

, 2010
We demonstrate lensfree holographic microscopy on a chip to achieve approximately 0.6 microm spatial resolution corresponding to a numerical aperture of approximately 0.5 over a large field-of-view of approximately 24 mm2.
Bishara, Waheb, Coskun, Ahmet F, Ozcan, Aydogan, Su, Ting-Wei   +3 more
core   +1 more source

Clinically Informed Intelligent Classification of Ovarian Cancer Cells by Label‐Free Holographic Imaging Flow Cytometry

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, Beatrice Cavina, Daniele Gaetano Sirico, Martina Mugnano, Vittorio Bianco, Lisa Miccio, Anna Myriam Perrone, Anna Maria Porcelli, Giuseppe Gasparre, Ivana Kurelac, Pasquale Memmolo, Pietro Ferraro   +11 more
wiley   +1 more source

Heterodyne Holography with full control of both signal and reference arms

, 2015
Heterodyne holography is a variant of phase shifting holography in which reference and signal arms are controlled by acousto optic modulators. In this review paper, we will briefy describe the method and its properties, and we will illustrate its ...
Gross, Michel
core   +2 more sources

Advanced Contactless Bioassembly Approaches: Leveraging Sound, Optical, and Magnetic Fields

Advanced NanoBiomed Research, EarlyView.
This review explores innovative contactless bioassembly techniques driven by sound, light, and magnetic fields, which enable the precise organization of cells, biomaterials, and bioactive substances into complex 3D structures. These technologies, crucial for in vitro modeling and regenerative medicine, are examined in detail, highlighting their ...
Micaela Natta, Greta Cocchi, Riccardo Tognato, Alessandro Cianciosi, Tiziano Serra   +4 more
wiley   +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, Tomasz Kozacki, Peter Schelkens   +2 more
doaj   +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, Mudanyali, Onur, Ozcan, Aydogan   +2 more
core   +1 more source

Unstained Blood Smear Analysis: A Review of Rule‐Based, Machine Learning, and Deep Learning Techniques

Journal of Biophotonics, EarlyView.
Bright‐field images of unstained smears. (1) Sparse erythrocytes allow straightforward intensity‐ or phase‐based segmentation. (2) Overlapping cells blur boundaries, causing over‐ or under‐segmentation and lowering rule‐based accuracy, thus motivating overlap‐aware algorithms for reliable downstream feature extraction and classification. ABSTRACT Blood
Husnu Baris Baydargil, Thomas Bocklitz
wiley   +1 more source

Single to multiple digital holograms for phase compensation and defect detection

Frontiers in Photonics
Digital holography enables quantitative phase imaging based on interference. A digital hologram often encodes the phase information along with aberrations or deformations.
Zhenkai Chen, Wenjing Zhou, Zhou Ge, Yingjie Yu, Hongbo Zhang, Ting-Chung Poon   +5 more
doaj   +1 more source

Multicascade-linked synthetic wavelength digital holography using an optical-comb-referenced frequency synthesizer [PDF]

, 2018
Digital holography (DH) is a promising method for non-contact surface topography because the reconstructed phase image can visualize the nanometer unevenness in a sample.
ABRAHAM, Emmanuel, IBRAHIM, Dahi Ghareab Abdelsalam, IWATA, Tetsuo, KAWAHITO, Yusuke, MINAMIKAWA, Takeo, MINOSHIMA, Kaoru, MIZUNO, Takahiko, MIZUTANI, Yasuhiro, OE, Ryo, OGAWA, Takayuki, SHIBUYA, Kyuki, TROVATO, Clément, YAMAGIWA, Masatomo, YAMAMOTO, Hirotsugu, YASUI, Takeshi   +14 more
core   +1 more source

Orbital Angular Momentum Holography Using Neural Network and Camera in the Loop

Laser &Photonics Reviews, EarlyView.
Neural network and optimization‐based approaches are introduced for Orbital Angular Momentum (OAM) multiplexed holography, enabling high‐capacity, phase‐only image reconstruction. A Camera‐In‐The‐Loop (CITL) system learns a realistic propagation model to correct system imperfections.
Nima Asoudegi, Mo Mojahedi
wiley   +1 more source