Results 191 to 200 of about 3,906 (246)

Suppressing Stitching Errors in Full‐Sensor‐Plane Color Routers via Optical Structural Similarity

Nanophotonics, Volume 15, Issue 14, 27 July 2026.
Angle‐specific nanophotonic color routers are assembled from a library of inverse‐designed unit cells matched to local incidence angles. Optical structural similarity (OSS) constrains neighboring permittivity profiles during optimization, suppressing inter‐cell stitching errors without additional full‐wave simulations and enabling oblique‐incidence ...
Donghyun Kim, Junseo Han, Seunghyun Lee, Min Seok Jang, Haejun Chung   +4 more
wiley   +1 more source

Robust spatial phase prediction from paired intensities using multi-scale wavelets and aberration sensing network. [PDF]

Biomed Opt Express
Huang Y, Zhang H, He Y, Yang Z, Liu X.
europepmc   +1 more source

Cryogenic Dielectric Metasurface‐Integrated Superconducting Nanowire Single‐Photon Detectors

Nanophotonics, Volume 15, Issue 13, 13 July 2026.
Superconducting nanowire single‐photon detectors (SNSPDs) are the leading technology for single‐photon detection because of their near‐unity system detection efficiency, ultrahigh timing precision, and very low dark counts. However, achieving these performance metrics with single element, small‐active‐area SNSPDs has been an outstanding challenge. Here,
Amir Targholizadeh, Grigoriy Y. Nikulin, Pankaj K. Jha   +2 more
wiley   +1 more source

Machine learning assisted wavefront sensor. [PDF]

Proc SPIE Int Soc Opt Eng
McFadden C, Chen B, Fiolka R.
europepmc   +1 more source

Dynamic Wavefront Manipulation Enabled with VO₂-Based Reflective Terahertz Metasurfaces. [PDF]

Nanomaterials (Basel)
Huang R, Shi S, Sun M, Yang R, Lin Y, Wu M, Zhang M, Maksimenko S, He X.   +8 more
europepmc   +1 more source

Influence of Mold Design and Molding Conditions on the Optical Properties of Contact Lenses. [PDF]

Sensors (Basel)
Tatsumi K, Saeki K, Kubota S, Kaneda Y, Uno K, Ohnuma K, Shiina T.   +6 more
europepmc   +1 more source

Refractive adaptive optics scanning light ophthalmoscope with fast 2D MEMS scanner. [PDF]

Biomed Opt Express
Kunala K, Xia Y, Ayubi GA, Kowalski B, Desai AX, Lippman D, Bentley J, Dubra A.   +7 more
europepmc   +1 more source

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Wavefront sensing with an axicon

Optics Letters, 2011
The use of a large apex-angle axicon for common-path interferometric wavefront sensing is proposed. The approach is a variant of point-diffraction interferometry bearing similarities to pyramidal wavefront sensing. A theoretical basis for wavefront sensing with an axicon is developed, and the outcomes of numerical simulations are compared to ...
Brian, Vohnsen, Sara, Castillo, Diego, Rativa   +2 more
openaire   +2 more sources

Making sense out of wavefront sensing

American Journal of Ophthalmology, 2005
a T p HE PRESENCE OF OPTICAL ABERRATIONS THAT BLUR retinal images were the subject of popular lectures by Helmholtz in the 1860s, and led him to state: Now, it is not too much to say that if an optician wanted o sell me an instrument which had all these defects, I hould think myself justified in blaming his carelessness in he strongest terms and giving
Jay S, Pepose, Raymond A, Applegate
openaire   +2 more sources

The optics of wavefront sensing

Ophthalmology Clinics of North America, 2004
This article reviews the fundamental principles by which wavefront aberrometers measure ocular aberrations. Three different ways of interpreting aberration measurements are described in terms of wavefront phase, slope, and curvature. Although curvature is the more familiar concept from geometrical optics, the wave optics concept of wavefront phase is ...
openaire   +2 more sources