Zerush
@Zerush@lemmy.ml
Black belt in Mikado Photo model, for the photos where they put under 'BEFORE'
- Comment on take a deep underwater breath 17 hours ago:
Correct, but phytoplankton also is dying because global and ocean warming.
- Comment on 1 week ago:
The World is suffering a Dunner - Kruger epedemy.
- Comment on Its all about bonding 1 week ago:
Never and not needed, adding oil or fat to the spaguetti avoid that the sauce sticks to the pasta. If you want, some olive oil after this. Boiling spaguetties with enough water it don’t stick together.
- Comment on 🐟💥 1 week ago:
- Comment on 🐟💥 1 week ago:
- Comment on Chat, is this accurate? 3 weeks ago:
You can lick everything, but some only one time
- Comment on I must con(FeS₂), this sparked a laugh 3 weeks ago:
- Comment on O hi 4 weeks 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 4 weeks 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 4 weeks ago:
- Comment on Reverse cowgirl 4 weeks ago:
Because of this. At least they die happy.
- Comment on Thanks, little buddies. 4 weeks ago:
- Comment on Thanks, little buddies. 4 weeks ago:
Same for the Bandworm
- Comment on Doing it now 5 weeks ago:
- Comment on Seafood!!! 5 weeks ago:
Yes, some species of Butterflies are, you can see also sometimes Butterflies sucking wounds of cattle and others on farms.
- Comment on 5 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 5 weeks ago:
- Comment on Only one woman for me, ma 5 weeks ago:
A good question
- Comment on Prediction vs Reality 5 weeks ago:
This Summer for sure
- Comment on Prediction vs Reality 5 weeks ago:
I’m from Spain
- Comment on Saturn's Bestagon 1 month ago:
1967 - They say, the design was accidental, for sure, I think, maybe
- Comment on Saturn's Bestagon 1 month 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. 1 month ago:
Al this to work later in the job with an Excel accountant table.
- Comment on Bee fly 1 month ago:
- Comment on Happy birds 1 month 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 1 month ago:
- Comment on Wiley Coyote 1 month 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. 1 month 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. 1 month ago:
I like to play chess with people which are way better than I am in it
- Comment on WOMEN. 1 month ago:
