Results 61 to 70 of about 4,294 (185)

Flexible Image Reconstruction in the Orbital Angular Momentum Holography with Binarized Airy Lens

open access: yesPhotonics, 2022
The orbital angular momentum (OAM) holography has been marked a path to achieving ultrahigh capacity holographic information systems. However, the practical applicability of the OAM holography is limited by the complicated optical setup and unadjustable ...
Feili Wang   +6 more
doaj   +1 more source

Mirror and Circular Symmetry of Autofocusing Beams [PDF]

open access: yesSymmetry, 2021
This article demonstrates the crucial importance of the symmetrization method for the formation of autofocusing beams. It is possible to impart autofocusing properties to rather arbitrary distributions, for example, truncated and inverted classical modes (such as Hermite–Gaussian, Laguerre–Gaussian, and Bessel modes) or shift the fundamental Gaussian ...
openaire   +2 more sources

Optical Wireless Communications with Metasurfaces: Current Status and Potential for Intelligent Communications

open access: yesAdvanced Photonics Research, EarlyView.
Optical wireless communications (OWCs) provide a promising alternative to spectrum‐congested microwave wireless communications. Recently, the use of metasurfaces with sub‐wavelength features for dynamic beam steering, beam manipulation, and spatial or optical‐angular‐momentum mode generation, conversion, and multiplexing in OWCs is proposed and ...
Ke Wang   +7 more
wiley   +1 more source

A Robot-Assisted Cell Manipulation System with an Adaptive Visual Servoing Method

open access: yesMicromachines, 2016
Robot-assisted cell manipulation is gaining attention for its ability in providing high throughput and high precision cell manipulation for the biological industry. This paper presents a visual servo microrobotic system for cell microinjection.
Yu Xie   +5 more
doaj   +1 more source

Airy beam induced optical routing

open access: yes, 2013
We present an all-optical routing scheme based simultaneously on optically induced photonic structures and the Airy beam family. The presented work utilizes these accelerating beams for the demonstration of an all-optical router with individually ...
Agrawal G. P.   +4 more
core   +1 more source

Accessible digital ophthalmoscopy based on liquid-lens technology [PDF]

open access: yes, 2015
Ophthalmoscopes have yet to capitalise on novel low-cost miniature optomechatronics, which could disrupt ophthalmic monitoring in rural areas. This paper demonstrates a new design integrating modern components for ophthalmoscopy.
Bergeles, C   +8 more
core   +1 more source

Attenuated Nuclear Tension Regulates Progerin‐Induced Mechanosensitive Nuclear Wrinkling and Chromatin Remodeling

open access: yesAdvanced Science, EarlyView.
The premature aging‐related progerin leads to defective nuclear morphology and is associated with disrupted molecular coupling between the extranuclear cytoskeleton and lamin‐associated nuclear envelope. It is discovered that progerin expression reduces nuclear tension, forms nuclear wrinkling, and enhances chromatin dynamics, thereby regulating ...
Ji‐Eun Park   +9 more
wiley   +1 more source

Design and Experimental Validation of an Optical Autofocusing System with Improved Accuracy

open access: yesPhotonics, 2023
This study proposes a modified optical design to improve the issue of autofocus accuracy in existing optical systems. The proposed system uses lens offset to convert incident light into non-parallel light, achieving a focus shift and avoiding severe ...
Jui-Hsiang Hung   +3 more
doaj   +1 more source

Empowering Biomedical Research with Foundation Models in Computational Microscopy: A Systematic Review

open access: yesAdvanced Intelligent Systems, EarlyView.
The integration of foundation models into computational microscopy revolutionizes biomedical research by enhancing imaging resolution, accelerating data analysis, and enabling real‐time biological interpretation. This systematic review critically examines recent advancements, highlights translational challenges, and discusses the transformative ...
Di Ding   +5 more
wiley   +1 more source

Laser autofocusing: A sliding mode approach

open access: yesIECON 2010 - 36th Annual Conference on IEEE Industrial Electronics Society, 2010
Quality of the laser processing depends on many factors, such as overall configuration of the laser workstation, control methods used and quality of the laser beam. Although lasers used in material processing are typically high energy lasers, light beam still needs to be focused in order to achieve higher energy density and smaller final spot size ...
Golubovic, Edin   +3 more
openaire   +3 more sources

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