Results 91 to 100 of about 1,870,110 (224)

A Holographic Diffuser Generalised Optical Differentiation Wavefront Sensor

, 2017
The wavefront sensors used today at the biggest World's telescopes have either a high dynamic range or a high sensitivity, and they are subject to a linear trade off between these two parameters.
Bergomi, Maria, Biondi, Federico, Carolo, Elena, Chinellato, Simonetta, Dima, Marco, Farinato, Jacopo, Greggio, Davide, Gullieuszik, Marco, Magrin, Demetrio, Marafatto, Luca, Portaluri, Elisa, Ragazzoni, Roberto, Umbriaco, Gabriele, Vassallo, Daniele, Viotto, Valentina   +14 more
core   +1 more source

Terahertz 3D printed diffractive lens matrices for field-effect transistor detector focal plane arrays.

Optics Express, 2016
We present the concept, the fabrication processes and the experimental results for materials and optics that can be used for terahertz field-effect transistor detector focal plane arrays.
K. Szkudlarek, M. Sypek, G. Cywiński, J. Suszek, P. Zagrajek, A. Feduniewicz-Żmuda, I. Yahniuk, S. Yatsunenko, A. Nowakowska-Siwińska, D. Coquillat, D. But, M. Rachon, K. Wegrzynska, C. Skierbiszewski, W. Knap   +14 more
semanticscholar   +1 more source

Snapshot 3D tracking of insulin granules in live cells

, 2018
Rapid and accurate volumetric imaging remains a challenge, yet has the potential to enhance understanding of cell function. We developed and used a multifocal microscope (MFM) for 3D snapshot imaging to allow 3D tracking of insulin granules labeled with ...
Alan Selewa, Hannah Yi, Itay Gdor, Mark Hereld, Matthew Daddysman, Norbert Scherer, Theresa Haunold, Xiang Huang, Xiaolei Wang   +8 more
core   +1 more source

Delay interferometric single-shot measurement of a petawatt-class laser longitudinal chromatism corrector [PDF]

, 2007
International audienceIn this paper we present a self-referenced interferometric single-shot measurement technique that we use to evaluate the longitudinal chromatism compensation made by a diffractive lens corrector. A diffractive lens with a delay of 1
Blanchot, N, Neauport, Jérôme, Rouyer, C, Sauteret, C   +3 more
core   +1 more source

Suitability of Different Observational Lenses for Viewing the Macular Area Through Multifocal Intraocular Lenses in a Model of the Human Eye

Clinical Ophthalmology, 2020
Tomoyuki Watanabe, Akira Watanabe, Tadashi Nakano Department of Ophthalmology, The Jikei University School of Medicine, Tokyo 105-8461, JapanCorrespondence: Tomoyuki WatanabeDepartment of Ophthalmology, The Jikei University School of Medicine, 3-25-8 ...
Watanabe T, Watanabe A, Nakano T
doaj  

Eye-Safe Solid-State Quasi-CW Raman Laser with Millisecond Pulse Duration

, 2012
We demonstrate the first quasi-CW (ms-long pulses, pump duty cycle of 10%) end-diode pumped solid state laser generating eye-safe radiation via intracavity Raman conversion. The output power at the first Stokes wavelength (1524 nm) was 250 mW.
Agnesi, Anton A. Kananovich, Apanasevich, Apanasevich, Bermudez, Boyd, Cerný, Chen, Dekker, Dekker, Demidovich, Di Lieto, Dmitriy H. Zusin, Fan, Grabchikov, Grabtchikov, Grasjuk, Innocenzi, Kaminskii, Kananovich, Kananovich, Lee, Lee, Lisinetskii, Ogilvy, Omatsu, Pask, Pask, Pask, Pavel, Pavel A. Apanasevich, Sato, Tidwell, Valentin A. Orlovich, Vladimir I. Dashkevich, Weber, Yao, Zagumennyi   +37 more
core   +1 more source

Role of angle κ in visual quality in patients with a trifocal diffractive intraocular lens.

Journal of cataract and refractive surgery, 2018
PURPOSE To evaluate the visual quality of patients with different angle κ sizes after a trifocal diffractive intraocular lens (IOL) implantation. SETTING The Affiliated Hospital of Qingdao University, Qingdao, China. DESIGN Prospective case series.
Y. Qi, Jing Lin, Lin Leng, Guiqiu Zhao, Qing Wang, Cui Li, Li-ting Hu   +6 more
semanticscholar   +1 more source

Visual performance after the implantation of a new trifocal intraocular lens

Clinical Ophthalmology, 2013
Jérôme C Vryghem,1,2 Steven Heireman1,21Brussels Eye Doctors, Brussels, Belgium; 2Clinique Saint-Jean, Brussels, BelgiumPurpose: To evaluate the subjective and objective visual results after the implantation of a new trifocal diffractive ...
Vryghem JC, Heireman S
doaj  

Optical performance of a new design of a trifocal intraocular lens based on the Devil's diffractive lens. [PDF]

Biomed Opt Express, 2023
Furlan WD, Martínez-Espert A, Montagud-Martínez D, Ferrando V, García-Delpech S, Monsoriu JA.   +5 more
europepmc   +1 more source

Comparison of visual outcomes after bilateral implantation of a diffractive trifocal intraocular lens and blended implantation of an extended depth of focus intraocular lens with a diffractive bifocal intraocular lens

Clinical Ophthalmology, 2017
Purpose The purpose of this study was to compare the visual outcomes and subjective visual quality between bilateral implantation of a diffractive trifocal intraocular lens, Alcon Acrysof IQ® PanOptix® TNFT00 (group A), and blended implantation of an ...
André Lins de Medeiros, André Gustavo de Araújo Rolim, A. Motta, B. Ventura, César Vilar, M. A. Chaves, P. Carricondo, W. Hida   +7 more
semanticscholar   +1 more source