Results 191 to 200 of about 221,703 (328)

Advanced Emissivity Tuning Via Femtosecond Laser Surface Engineering

open access: yesAdvanced Optical Materials, EarlyView.
Femtosecond laser surface processing (FLSP) is employed to fabricate titanium‐based metamaterials with engineered micro/nano‐scale features that exhibit spectrally selective and omnidirectional thermal emissivity. By integrating advanced ellipsometry, electromagnetic modeling, and compositional analysis, the work reveals resonance‐driven emissivity ...
Zahra Kamali Khanghah   +8 more
wiley   +1 more source

The redshift of extragalactic nebulae

open access: yes, 1933
This gives a description of the most essential characteristics of extragalactic nebulae, as well as of the methods used to investigate these. In particular, the so-called redshift of extragalactic nebulae is discussed in detail. Various theories which have been proposed to explain this important phenomenon, are briefly discussed.
openaire   +2 more sources

Tuning Solid‐State Fluorescence in BODIPY Dyes through Substitution‐Controlled Packing Motifs

open access: yesAdvanced Optical Materials, EarlyView.
A systematic structure–property study reveals how substitution patterns in BODIPY dyes control supramolecular packing and solid‐state emission. The interplay of substituent type, packing motif, and π–π overlap governs emission color and efficiency. Abstract Understanding how molecular packing governs solid‐state fluorescence is key to unlocking new ...
Tim Patten   +4 more
wiley   +1 more source

Redshifts for Southern Quasars [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 1975
Browne, Ian, SAVAGE, A, BOLTON, JG
openaire   +2 more sources

Growth of structures using redshift space distortion in f(T) cosmology [PDF]

open access: gold
Rebecca Briffa   +3 more
openalex   +1 more source

Biogenic Next‐Gen CPL Emitters: Strategies with Proteins, Polysaccharides, and Nucleotides

open access: yesAdvanced Optical Materials, EarlyView.
Biogenic molecules such as proteins, peptides, saccharides, and DNA can act as natural scaffolds for generating circularly polarized luminescence (CPL). This review highlights recent strategies exploiting these inherently chiral frameworks to achieve light emission with controllable handedness under unpolarized excitation, bridging biological ...
Ricardo Chavez‐Jimenez   +4 more
wiley   +1 more source

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