Results 211 to 220 of about 15,555,412 (284)

Harnessing Optical Limiting in Saturable Absorbers for Reconfigurable Spectral Engineering of Ultrafast Fiber Lasers

Laser &Photonics Reviews, EarlyView.
Optical limiting in a nanomaterial‐polymer saturable absorber is harnessed as a functional intracavity degree of freedom, where pump‐controlled photothermal loss continuously reshapes the gain spectrum of rare‐earth ions, enabling non‐mechanical spectral engineering in an ultrafast fiber laser.
Maolin Dai, Weitao Wang, Masahiro Nomura, Sze Yun Set, Shinji Yamashita   +4 more
wiley   +1 more source

Comprehensive characterization of human color discrimination thresholds. [PDF]

Elife
Hong F, Bouhassira R, Chow J, Sanders C, Shvartsman M, Guan P, Williams AH, Brainard DH.   +7 more
europepmc   +1 more source

Phase Multiplexed Optical Computing: Reconfiguring a Multi‐Task Diffractive Optical Processor Using Illumination Phase Diversity

Laser &Photonics Reviews, EarlyView.
A monochrome multi‐task diffractive optical network architecture is designed to leverage illumination‐phase multiplexing to dynamically reconfigure its output function and accurately implement a large set of complex‐valued linear transformations between an input and an output aperture.
Xiao Wang, Aydogan Ozcan
wiley   +1 more source

Computing semidefinite programming lower bounds for the (fractional) chromatic number via block-diagonalization. [PDF]

Laurent, M., Gvozdenović, N.
core  

Quantitative Assessment of Abdominal Physical Features Associated with Cold Pattern. [PDF]

J Clin Med
Kim KH, Jang JS, Ko SJ, Park JW.
europepmc   +1 more source

A Nearly Perfect Implementation of a Broadband Optical Null Media via Space‐Folding

Laser &Photonics Reviews, EarlyView.
A space‐folding optical null medium with impedance‐matching layers enables broadband directional wave projection and wavefront engineering. By tailoring the folding ratio and dilution ratio, the structure maintains near‐unity transmittance over 5–9 GHz.
Yichao Liu, Jiale Li, Fei Sun, Qin Liao
wiley   +1 more source

A Coarse-to-Fine Framework for Oil-Water Interface Measurement in Small-Caliber Transparent Test Tubes. [PDF]

Sensors (Basel)
Zhou B, Zhou Y, Zou J, Lv Z, Zhang W, Wang R, Meng S.   +6 more
europepmc   +1 more source

Color Symmetry Breaking in a Nonlinear Optical Microresonator

Laser &Photonics Reviews, EarlyView.
A two‐color pump drives an integrated microring resonator into spontaneous color symmetry breaking mediated by the nonlinear Kerr effect. Above threshold, one optical color becomes spontaneously dominant while the other is submissive, with the selected output state emerging randomly. These results establish a new form of symmetry breaking in integrated
Luca O. Trinchão, Alekhya Ghosh, Arghadeep Pal, Haochen Yan, Toby Bi, Shuangyou Zhang, Nathalia B. Tomazio, Flore K. Kunst, Lewis Hill, Gustavo S. Wiederhecker, Pascal Del'Haye   +10 more
wiley   +1 more source

Wavelength dependence of fine spatial resolution in human vision. [PDF]

Atten Percept Psychophys
Buabeng Y, Hammond BR.
europepmc   +1 more source

Gradient‐Structured Polymer Fiber Mats for Broadly Tunable Multicolor and White Lasing

Laser &Photonics Reviews, EarlyView.
Hierarchically engineered electrospun fiber mats containing separated red, green, and blue dyes enable highly tunable multicolor and white random lasing. Spatially controlled dye distribution suppresses energy transfer, allowing precise color adjustment across wide color gamuts and accurate reproduction of daylight white standards.
Alina Szukalska, Kinga Halicka‐Stępień, Jastin Popławski, Katarzyna Kołodzińska, Michal Majkowski, Joanna Cabaj, Lech Sznitko   +6 more
wiley   +1 more source