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Optical materials and structures are substances used to manipulate the flow of light. This can include reflecting, absorbing, focusing or splitting an optical beam. The efficiency of a specific material at each task is strongly wavelength dependent, thus a full understanding of the interaction between light and matter is vital.
Metasurfaces offer new possibilities for nonlinear optics, but efficiency is an issue. Researchers have now used DNA-mediated assembly to produce 3D nonlinear optical colloidal crystals whose effective nonlinear susceptibility rivals that of traditional dielectric nonlinear optical crystals.
Achiral dielectric nanostructures provide an efficient method for discriminating left- and right-circularly polarized photons, leveraging the photothermoelectric effect.
High luminescence efficiency is difficult to achieve in metal nanoclusters. Here, the authors add multiple metal cations to gold nanocluster which suppress structural motions and manage electron transfer dynamics, realizing near-unity efficiency.
THz third harmonic generation setup. A lowpass filter transmits a multicycle THz pulse, a graphene-based sample efficiently enables third harmonic generation, and a highpass filter helps improve its detection.
This work investigates the mechanoluminescence of Mn2+ -doped SrZnOS under rapid compression up to 10 GPa at different rates. Oscillatory mechanoluminescent phenomenon and rate-dependent mechanoluminescent kinetics are reported.
Silver nanoring metastructures designed via AI dramatically boost light absorption in ultra-thin silicon films, achieving high efficiency for solar and photonic applications.
CMOS wafer scale manufactured chiral exceptional point non-Hermitian modulators were demonstrated through AIM photonics. This enables GHz-speed asymmetric electro-optic modulation with 17 dB contrast using CMOS-compatible voltages.
Metasurfaces offer new possibilities for nonlinear optics, but efficiency is an issue. Researchers have now used DNA-mediated assembly to produce 3D nonlinear optical colloidal crystals whose effective nonlinear susceptibility rivals that of traditional dielectric nonlinear optical crystals.
Achiral dielectric nanostructures provide an efficient method for discriminating left- and right-circularly polarized photons, leveraging the photothermoelectric effect.
