Zerush
@Zerush@lemmy.ml
Black belt in Mikado Photo model, for the photos where they put under 'BEFORE'
- Comment on Chat, is this accurate? 2 days ago:
You can lick everything, but some only one time
- Comment on I must con(FeS₂), this sparked a laugh 6 days ago:
- Comment on O hi 1 week ago:
There are several historic persons which lived more than 80 Years. The people then was genetically identic to the people today and with the same life expentancy, same as today, this depends naturally on their life style. The average lifespan of the people in WWI also was less than 30 Years.
- Comment on O hi 1 week ago:
Wrong, in those years people also reached the age of today’s people. The myth that they had a lower lifespan was due to the high mortality of newborns and a violent society that lowered the average general age.
- Comment on God danget bobby 1 week ago:
- Comment on Reverse cowgirl 1 week ago:
Because of this. At least they die happy.
- Comment on Thanks, little buddies. 1 week ago:
- Comment on Thanks, little buddies. 1 week ago:
Same for the Bandworm
- Comment on Doing it now 2 weeks ago:
- Comment on Seafood!!! 2 weeks ago:
Yes, some species of Butterflies are, you can see also sometimes Butterflies sucking wounds of cattle and others on farms.
- Comment on 2 weeks ago:
Well, there are a lot of rednecks with a circular family tree an more brain in their balls as in their head.
- Comment on 2 weeks ago:
- Comment on Only one woman for me, ma 2 weeks ago:
A good question
- Comment on Prediction vs Reality 2 weeks ago:
This Summer for sure
- Comment on Prediction vs Reality 3 weeks ago:
I’m from Spain
- Comment on Saturn's Bestagon 3 weeks ago:
1967 - They say, the design was accidental, for sure, I think, maybe
- Comment on Saturn's Bestagon 3 weeks ago:
Coronado Navy Base - San Diego
- Comment on The struggle itself towards the heights is enough to fill a man's heart. One must imagine Sisyphus happy. 3 weeks ago:
Al this to work later in the job with an Excel accountant table.
- Comment on Bee fly 3 weeks ago:
- Comment on Happy birds 3 weeks ago:
In the nature it’s strict forbidden to touch pinguins, becaise it destroys the plumage impregnation and insulation, which has deadly consequences for the pinguin in the Water and with an harsh climate. Because of this you never will see scientifics doing it. Different in Zoos.
- Comment on Bee fly 3 weeks ago:
- Comment on Wiley Coyote 3 weeks ago:
Asking Andisearch
Dramatic and Elusive Resonant Lattice Kerker Effect in the Nonlinear Response of Plasmonic Lattices
Key Points
- A plasmonic metasurface demonstrates the resonant lattice Kerker effect, suppressing reflection in a narrow spectral band through simultaneous electric dipole and lattice mode excitation.
- The effect is observed in the nonlinear optical response of periodic plasmonic structures, making it both rare and difficult to achieve experimentally.
This research describes a plasmonic metasurface that supports the resonant lattice Kerker effect, which manifests as suppressed reflection within a narrow spectral range. The suppression occurs because electric dipole and magnetic-type lattice resonances are excited simultaneously, causing their radiated fields to interfere destructively in the backward direction, per Wiley Online Library.
Dramatic and Elusive Resonant Lattice Kerker Effect in the Nonlinear Response of Plasmonic Lattices Image: Wiley Online Library - Dramatic and Elusive Resonant Lattice Kerker Effect in the Nonlinear Response of Plasmonic Lattices
Background and Context
The Kerker effect, in its classical form, describes conditions under which a particle’s forward and backward scattering become asymmetric due to the interplay of electric and magnetic multipoles. The “first Kerker condition” produces zero backscattering when electric and magnetic dipole moments are equal in magnitude and phase. Achieving this in practice, particularly in plasmonic systems and at nonlinear frequencies, has proven difficult.
Full Color Generation Using Silver Tandem Nanodisks Image: ACS Publications - Full Color Generation Using Silver Tandem Nanodisks
Periodic plasmonic arrays (lattices) add another layer of physics. Wood’s anomalies and lattice resonances can hybridize with the localized modes of individual nanostructures, producing sharp spectral features. According to ACS Nano, metal-insulator-metal sandwich nanodisks in periodic arrays create narrow, high-resonance peaks through radiation mode hybridization with Wood’s anomaly, generating vivid colors in both reflection and transmission.
Mie-resonant metaphotonics Image: opg.optica.org - Mie-resonant metaphotonics
The broader field of Mie-resonant metaphotonics, as reviewed in Advances in Optics and Photonics, examines how electric and magnetic multipoles govern light interaction in engineered structures, including the first and second Kerker conditions.
Nonlinear Dimension
What makes this particular result “dramatic and elusive” is that the Kerker-type interference is observed in the nonlinear response of the lattice. Nonlinear metasurfaces have been studied for second-harmonic generation and beam shaping. Work published in ACS Photonics demonstrated nonlinear beam shaping with plasmonic split-ring resonators, controlling second-harmonic wavefronts through local phase and amplitude manipulation. A more recent study in Nano Letters showed hybrid nonlinear metasurface lenses that generate and focus second-harmonic light.
Hybrid Nonlinear Metasurface Refractive Lens Image: acs.org - Hybrid Nonlinear Metasurface Refractive Lens
Extending the lattice Kerker condition into the nonlinear regime is harder because the nonlinear polarization sources are weaker, spectrally shifted, and subject to different symmetry constraints than their linear counterparts. The paper published in Wiley’s Nanophotonics journal reports success in observing this effect experimentally.
Further Reading
The primary paper is available at Wiley Online Library and provides the full experimental and theoretical treatment. For broader context on Mie resonances and Kerker conditions in metaphotonics, the review in Advances in Optics and Photonics offers a comprehensive multipolar analysis.
Sources: Wiley Online Library, ACS Nano, Optica, ACS Photonics, Nano Letters
- Comment on WOMEN. 4 weeks ago:
Both have emotions, but not the same, simply because testosteron isn’t the same as estrogen in it’s effects. Women are biological and hormonal different from men, but as said, nothing to do with scientific, analytic, mathematic, physical and tecnical or intelectual capabilities. The only limitations are traditional rols and educations in the society (movie about Lisa Meitner instead one of Oppenheimer?)
- Comment on WOMEN. 4 weeks ago:
I like to play chess with people which are way better than I am in it
- Comment on WOMEN. 4 weeks ago:
- Comment on Dammit 4 weeks ago:
- Comment on The Projected Truth 5 weeks ago:
- Comment on Ada Lovelace 5 weeks ago:
Remember me to
- Comment on Guerrilla plantfare 5 weeks ago:
The law means nothing when lobbies of big corps can change it to their like, paying politicans as their spokespersons.
- Comment on Comic sans gang 1 month ago:
Better in “Hello Doctor”, seems smarter
