Results 91 to 100 of about 51,169 (250)

Direct-Write Digital Holography. Development and research of a hologram printer [PDF]

arXiv, 2009
Chapter 1 gives a brief history of the field of holography along with an overview of this thesis. A more detailed description of holography is provided in Chapter 2 along with a discussion of digital holography. Chapter 3 examines the design of a one-step monochromatic hologram printer capable producing white-light viewable transmission holograms ...
arxiv  

Crack Detection by Optical Voice Recorder Based on Digital Holography

Photonic Sensors, 2019
The detection of crack on materials is an important issue in industry. On the contrary to conventional methods, such as manual inspection, sensor detection, and image processing techniques, a new simple method to detect the crack is proposed with optical
Gülhan Ustabaş Kaya, Zehra Saraç
doaj   +1 more source

Hyperspectral holography and spectroscopy: computational features of inverse discrete cosine transform [PDF]

arXiv, 2019
Broadband hyperspectral digital holography and Fourier transform spectroscopy are important instruments in various science and application fields. In the digital hyperspectral holography and spectroscopy the variable of interest are obtained as inverse discrete cosine transforms of observed diffractive intensity patterns.
arxiv  

AutoSAFT: Autofocusing for extended depth of imaging in scanning acoustic microscopy

Journal of Microscopy, EarlyView.
Abstract In the scanning acoustic microscopy (SAM) imaging, it is essential to address the diminished lateral resolution in the out‐of‐focus region, as image quality correlates with the ultrasound propagation distance either above or below the focal plane.
M Sarim Ameed Khan, Shivam Ojha, Shubham Kumar Gupta, Amit Shelke, Azeem Ahmad, Frank Melandsø, Anowarul Habib   +6 more
wiley   +1 more source

Integration of Cobalt Ferromagnetic Control Gates for Electrical and Magnetic Manipulation of Semiconductor Quantum Dots

Advanced Functional Materials, Volume 35, Issue 14, April 3, 2025.
This work integrates nano‐sized cobalt control gates into a fully‐depleted silicon‐on‐insulator (FDSOI) nanowire architecture, combining electrical and ferromagnetic properties for scalable electron spin qubits. The design enables quantum dot formation at cryogenic temperatures and localized electric dipole spin resonance (EDSR).
Fabio Bersano, Michele Aldeghi, Niccolò Martinolli, Victor Boureau, Thibault Aboud, Michele Ghini, Pasquale Scarlino, Gian Salis, Adrian M. Ionescu   +8 more
wiley   +1 more source

Digital holography - an innovative technology for analysis of living cells

Bioingeniøren, 2010
Background: Digital holography is a novel technique which has been used for about five years to study living cells. The technique is an innovative, non-destructive method with possibilities to study living cells over time.
Zahra El-Schish, Anna Mölder, Mikael Sebesta, Anette Gjörloff Wingren   +3 more
doaj  

Photopolymer Resins from Sulfenyl Chloride Commodity Chemicals for Plastic Optics, Photopatterning and 3D‐Printing

Advanced Materials, Volume 37, Issue 14, April 9, 2025.
From oil refining to high refractive index photopolymers for bulk plastic optics. The synthesis of a new photopolymer resin derived from inexpensive sulfur petrochemicals is reported affording a high‐quality optical glass that is amenable to a wide range of photopolymerization‐based fabricated methods, including 3D Printing, for precision plastic ...
Chisom Olikagu, Shafagh Khoshsorour, Satya D. Dulam, Hyun‐Seok Yu, Natasha A. Graham, Kyung‐Jo Kim, Byeongjoon Jeong, James L. Hedrick, Amber Bunnag‐Stoner, Kimberley Cheng, Benjamin L. Batchelor, Woongbi Cho, Seung Bin Park, Jeong Jae Wie, Young‐Jae Kim, Min‐Gap Bog, Nithiyaa Bala Krishnan, Yi Yan Yang, Jon T. Njardarson, Robert A. Norwood, Jeffrey Pyun   +20 more
wiley   +1 more source

Dynamic Steerable Patterning of Microscale Particles and Living Cells Using an Ultrasound‐Phased Array

Advanced NanoBiomed Research, Volume 5, Issue 4, April 2025.
Ultrasound transducers can be used to pattern microscale particles. Herein, it is shown that dynamic patterning, i.e., varying pattern location and direction using transmit beamforming, can be achieved using a (clinical)‐phased array transducer without the need for a reflector. Moreover, initial acoustic patterning results on living cells are presented,
Rick J. P. van Bergen, Bart G. W. Groenen, Daniëlle C. A. Duffhues, Richard G. P. Lopata, Carlijn V. C. Bouten, Hans‐Martin Schwab   +5 more
wiley   +1 more source

Deep learning bimodal frequency-selective digital holography by using a confocal dual-beam setup

New Journal of Physics
This paper proposes a bimodal digital holography technique based on deep learning, marking the first application of neural networks in frequency-selective holographic reconstruction.
Wanbin Zhang, Yanchen Ren, Yijian Feng, Xiangdong Sun, Jiangnan Hu, Weiyong Xing, Zhanjun Zhang   +6 more
doaj   +1 more source

Incoherent digital holograms acquired by interferenceless coded aperture correlation holography system without refractive lenses [PDF]

arXiv, 2017
We present a lensless, interferenceless incoherent digital holography technique based on the principle of coded aperture correlation holography. The acquired digital hologram by this technique contains a three-dimensional image of some observed scene.
arxiv