Results 251 to 260 of about 6,537 (288)

Second‐Harmonic Hyper‐Mie Optical Activity Enables Closed‐Loop Chiral Photochemistry

open access: yesAdvanced Materials, EarlyView.
Nonlinear chiral photochemistry is demonstrated in CdTe/CdO nanohelices, where circularly polarized infrared light both drives and tracks photo‐oxidation via second‐harmonic scattering. This closed‐loop process reveals real‐time structural evolution, including shell fracturing and core exposure, accompanied by a transition from hyper‐Mie to hyper ...
Hoyeon Choi   +6 more
wiley   +1 more source

Generalized non-Hermitian Hamiltonian for guided resonances in photonic crystal slabs. [PDF]

open access: yesNanophotonics
Nguyen VA   +8 more
europepmc   +1 more source

Tailoring Phonon‐Driven Responses in α‐MoO3 through Isotopic Enrichment

open access: yesAdvanced Materials, EarlyView.
ABSTRACT The implementation of polaritonic materials into nanoscale devices requires selective tuning of parameters to realize desired spectral or thermal responses. One robust material, α‐MoO3, an orthorhombic crystal boasting three distinct phonon dispersions, provides three polaritonic dispersions of hyperbolic phonon polaritons (HPhPs) across the ...
Thiago S. Arnaud   +31 more
wiley   +1 more source

Deep Learning Inverse Design of Phase‐Change Reconfigurable Terahertz Metadevices for Multidimensional Secure Communication

open access: yesAdvanced Materials, EarlyView.
A deep learning inverse‐design framework is established to create versatile reconfigurable terahertz metadevices. By synergizing deep learning with phase‐change materials, this approach enables on‐demand customization of multidimensional electromagnetic responses.
Yisheng Dong   +11 more
wiley   +1 more source

A Superintegrable Quantum Field Theory. [PDF]

open access: yesCommun Math Phys
De Clerck M, Evnin O.
europepmc   +1 more source

Propagation of Smoothness for Edge-degenerate Wave Equations

open access: yes, 2001
A propagation result for an edge-degenerate wave equation in 1+1 dimensions is proved. The proposed method generalizes to other edge-degenerate wave equations.
Hayrapetyan, Ruben G., Witt, Ingo
openaire   +3 more sources

Sharp energy decay estimates for the wave equation with a local degenerate dissipation

open access: yesComputers and Mathematics With Applications, 2009
We derive a fast decay estimate for the wave equation with a local degenerate dissipation of the type a(x)ut in a bounded domain Ω. The dissipative coefficient a(x) is a nonnegative function only on a neighborhood of some part of the boundary ∂Ω and may ...
Yong Han Kang, Mi Jin Lee, Il Hyo Jung
exaly   +2 more sources

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