Results 201 to 210 of about 51,169 (250)

Ultranarrow-linewidth wavelength-vortex metasurface holography. [PDF]

Sci Adv
Meng W, Fröch JE, Cheng K, Pi D, Li B, Majumdar A, Maier SA, Ren H, Gu M, Fang X.   +9 more
europepmc   +1 more source

Some of the next articles are maybe not open access.

Related searches:

Subtraction digital holography

Applied Optics, 2003
Overlapping of the desired (first-order) and undesired (zero-order) terms originating from the recorded primary-fringe patterns in digital holography is a problem without a real-time solution. We propose a procedure for suppressing the zero-order disturbance that is realizable in real time.
Nazif Demoli, Ivica Sović, Jurica Mes̆trović   +2 more
openaire   +3 more sources

Infrared digital holography

SPIE Proceedings, 2003
Digitally recorded holograms in the infrared region(10.6 Micron) are numerically reconstructed.
De Nicola S, Allaria E, Brugioni S, Ferraro P, Grilli S, Meucci R   +5 more
openaire   +4 more sources

Comparative digital holography

Optics Letters, 2002
We described a method for direct holographic comparison of the shape or the deformation of two objects when it is not necessary that both samples be located at the same place. In contrast to the well-known incoherent techniques based on inverse fringe projection, this new approach uses a coherent mask that is imaged onto a sample object that has a ...
Werner Jüptner, Wolfgang Osten, Torsten Baumbach   +2 more
openaire   +3 more sources

On the role of sparsity in digital holography

Imaging and Applied Optics 2015, 2015
We investigate the sparsity properties of digital holograms demonstrating a strictly correlation between refocusing criteria and sparsity measurements. Then, a sparsity-based denoising approach is implemented for optimal holographic reconstructions and optical display. © 2015 OSA.
Memmolo Pasquale, Paturzo Melania, Javidi Bahram, Netti Paolo A, Ferraro Pietro   +4 more
openaire   +4 more sources

Roadmap of incoherent digital holography

Applied Physics B, 2022
This roadmap article focuses on spatially incoherent digital holography (IDH). Representative IDH methods such as optical scanning holography (OSH), Fresnel incoherent correlation holography (FINCH), coded aperture correlation holography (COACH), IDH with a Fresnel zone aperture, and IDH with an interferometer along with a state-of-the-art optical ...
Tatsuki Tahara, Yaping Zhang, Joseph Rosen, Vijayakumar Anand, Liangcai Cao, Jiachen Wu, Takako Koujin, Atsushi Matsuda, Ayumi Ishii, Yuichi Kozawa, Ryo Okamoto, Ryutaro Oi, Teruyoshi Nobukawa, Kihong Choi, Masatoshi Imbe, Ting-Chung Poon   +15 more
openaire   +2 more sources

Terahertz digital holography

SPIE Proceedings, 2012
Terahertz wave (THz, also name T-Ray) belongs to far-infrared electromagnetic radiation. Since its unique properties, THz techniques have been paid more and more attentions during the past decades. In this field, THz digital holography is an important research branch, which can accurately extract three-dimensional optical information of objects ...
Wenfeng Sun, Yan Zhang, Xinke Wang, Ye Cui   +3 more
openaire   +2 more sources

Autofocusing in digital holography

SPIE Proceedings, 2013
Digital holography allows the acquisition of 3D profiles of objects. Digitally captured holograms are reconstructed at the respective distances of the objects to reveal the phase and the intensity profiles. However, computing an object’s 3D profile with only a single reconstruction requires prior knowledge of the distance of the object from the ...
Özcan, Meriç, İlhan, Hazar Aytekin, Doğar, Mert   +2 more
openaire   +2 more sources

Stereoscopic Digital Holography

IEEE Transactions on Plasma Science, 2010
The ability to follow the motion of individual particles in a dusty plasma is essential for most experiments on complex plasmas. However, for 3-D particle clouds, the precise determination of all particle coordinates at once is a sophisticated task.
Lennart Muhlfeld, Dietmar Block, M. Kroll   +2 more
openaire   +2 more sources

Photon counting digital holography

SPIE Proceedings, 2016
Digital holography uses electronic sensors for hologram recording and numerical method for hologram reconstruction enabling thus the development of advanced holography applications. However, in some cases, the useful information is concealed in a very wide dynamic range of illumination intensities and successful recording requires an appropriate ...
Hrvoje Skenderović, Nazif Demoli, Mladen Pavičić, Mario Stipčević   +3 more
openaire   +2 more sources