Results 61 to 70 of about 9,024 (217)

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, Nicholas B, Fowler, Matthew J, Berg   +2 more
openaire   +2 more sources

Edge Extraction Based on Aperture Synthesis in Optical Scanning Holography [PDF]

, 2015
We present an edge extraction method based on aperture synthesis with different pupils in optical scanning holography. By utilizing two sub-holograms covering different spatial frequency ranges of the object, sharp edges can be extracted successfully ...
Ou, H, Edmund Y. Lam, Haiyan Ou, Lam, EY, Bing-Zhong Wang, Wang, B   +5 more
core   +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, Shang Wenbin, Yang Hong, Yang Yan   +3 more
doaj   +1 more source

Carbonated Fluorapatite‐Gelatin‐Composites: Morphogenesis and Structure of Kniep's Dumbbells

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
Inspired by the pioneering work of Prof. Rüdiger Kniep on fluorapatite‐gelatin nanocomposites also known as “Kniep's Dumbbells,” this study investigates carbonated fluorapatite‐gelatin aggregates synthesized by the double diffusion technique within a gelatin gel.
Elena V. Sturm, Wilder Carrillo‐Cabrera, Olga V. Frank‐Kamenetskaya, Dirk Zahn, Wolfgang W. Schmahl, Erika Griesshaber, Paul Simon   +6 more
wiley   +1 more source

Nanoscale Mapping of Plasmonic Charge Transport in Nano‐Resonators Based on Resistive Switching Materials

Advanced Functional Materials, Volume 36, Issue 46, 8 June 2026.
In this strategy, a conductive nano‐probe is employed to induce nanoscale phase transitions and map the nanoscale conductivity and trap density of GST films. By utilizing the contrasting properties of phase‐change states, nano‐resonators are fabricated that exhibit plasmonic conduction and dramatically different transport characteristics.
Sunwoo Bang, Seunghyo Park, Shashank Shekhar, Yuhyeon Oh, Seunghun Hong   +4 more
wiley   +1 more source

Multi-lambda digital holography with auto calibration of temporal phase-shifts and synthetic wavelengths

, 2009
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., Giel, D.M., Pfeifer, M., Carl, D., Höfler, H.   +4 more
core   +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

2D Materials Empowered Radar Absorbing Materials: A Review

Advanced Electronic Materials, Volume 12, Issue 12, 22 June 2026.
Recent progress in 2D materials empowered radar absorbing materials (RAMs) is reviewed, highlighting four key structural design strategies that enhance electromagnetic wave absorption. Porous structures, heterogeneous interfaces, printed metamaterials, and tunable metasurfaces are compared in terms of their governing physics, fabrication complexity ...
Yujie Zhong, Shuncong Zhong, Yi Huang, Shan‐Tung Tu, Minghong Wu   +4 more
wiley   +1 more source

Imaging analysis of digital holography

Optics Express, 2005
In this study we focus on understanding the system imaging mechanisms given rise to the unique characteristic of discretization in digital holography. Imaging analysis with respect to the system geometries is investigated and the corresponding requirements for reliable holographic imaging are specified.
Lei, Xu, Xiaoyuan, Peng, Zhixiong, Guo, Jianmin, Miao, Anand, Asundi   +4 more
openaire   +2 more sources

A Recording Structure for Extending the Detection Angle in Off-Axis Digital Holography

IEEE Photonics Journal
In digital holography, the sampling of the object wavefront is determined by the spatial resolution of the image sensors, which limits the angle range of the object wavefront.
Yuanyuan Liu, Feiyan Hu, Qingwen Liu
doaj   +1 more source