Results 241 to 250 of about 119,953 (318)

$b$-Local Irregular Chromatic Number of Graphs

open access: diamond
Arika Indah Kristiana   +6 more
openalex   +1 more source

Nearly 180° Field‐of‐View Metalens for Miniaturized Imaging Systems

open access: yesLaser &Photonics Reviews, EarlyView.
A compact, single‐layer metalens is developed with an ultra‐wide field of view of ≈180 degrees. Utilizing a unique quadratic phase profile, this metalens overcomes traditional issues like axial and color dispersion. It operates across red, green, and blue wavelengths with non‐polarized light, promising enhanced imaging capabilities for integration into
Azhar Javed Satti   +9 more
wiley   +1 more source

Customized Scattering‐Robust 3D Speckle Correlation for Improved Resolution and Imaging Depth in Scattering Tissue

open access: yesLaser &Photonics Reviews, EarlyView.
A scattering‐robust 3D speckle customization method is proposed to enhance both resolution and imaging depth in scattering tissue. Applied to light‐field microscopy (LFM), it improves 3D resolution by over twofold under strong optical scattering. In wide‐field fluorescence imaging, it enables a substantial improvement in imaging depth, allowing imaging
Yue Xing   +4 more
wiley   +1 more source

Differences in perceived chromatic aberration between emmetropic and myopic eyes using adaptive optics. [PDF]

open access: yesFront Med (Lausanne)
Rodriguez-Lopez V   +3 more
europepmc   +1 more source

Enhanced Dichroic Coloration Through Void‐Particle Induced Interference in Randomly Distributed Cu2O Octahedrons on Glass Substrate

open access: yesLaser &Photonics Reviews, EarlyView.
In randomly distributed Cu2O octahedron particles on a glass substrate, the absence of particles in certain areas generates a distinct “void‐particle induced interference” phenomenon. This effect results in notable reflection and transmission dichroism, characterized by two reflection peaks within the visible spectrum, but only a single transmission ...
Yaqun Han   +5 more
wiley   +1 more source

Dispersion‐Less Dissipative Soliton Fiber Laser

open access: yesLaser &Photonics Reviews, EarlyView.
A dispersion‐less fiber laser architecture generates high‐energy, pedestal‐free picosecond pulses without resorting to conventional pulse stretching. This energy‐managed laser achieves remarkable flexibility in pulse parameters, delivering up to 0.54 μJ$\mathrm{\mu}\mathrm{J}$ pulses with minimal spectral distortion using standard telecom components ...
Mostafa I. Mohamed   +2 more
wiley   +1 more source

Visible Brillouin-quadratic microlaser in a high-Q thin-film lithium niobate microdisk. [PDF]

open access: yesNat Commun
Luo X   +10 more
europepmc   +1 more source

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