Results 161 to 170 of about 428,921 (359)

“Seeing” Periodic Structures Emerge: Ultrafast Bright‐ and Dark‐Field Microscopy During Femtosecond Laser Interference Patterning of Silicon

open access: yesLaser &Photonics Reviews, EarlyView.
We report an ultrafast bright‐ and dark‐field pump‐probe microscopy technique combined with an interference patterning system to imprint amorphous and ablative line‐like structures with micrometer period in crystalline silicon using single femtosecond laser pulses.
Irene Solana, Jan Siegel
wiley   +1 more source

Long‐Range Exciton Energy Transfer in Two‐Dimensional Materials

open access: yesLaser &Photonics Reviews, EarlyView.
This review highlights recent advances in long‐range exciton energy transfer within planar 2D‐material architectures. It emphasizes the emergence of self‐hybridized excitonpolaritons, exciton coupling to surface plasmon polaritons and plasmonic lattices, and the role of dipoledipole transfer pathways in enabling efficient nanoscale energy transport ...
Paul H. Bittorf   +8 more
wiley   +1 more source

Mid‐Infrared Quantum Scanning Microscopy via Visible Light Beyond Spatial Correlations

open access: yesLaser &Photonics Reviews, EarlyView.
This work introduces a raster‐scanning approach based on quantum imaging with undetected light (QIUL) that probes samples in the mid‐infrared (MIR) spectral range while performing detection in the visible domain. Unlike previous QIUL implementations, this technique operates independently of photon‐pair spatial correlations and relies solely on induced ...
Josué R. León‐Torres   +6 more
wiley   +1 more source

Reconfigurable Circularly Polarized Terahertz Emission from vdW Ferroelectric NbOI2

open access: yesLaser &Photonics Reviews, EarlyView.
A controllable chiral terahertz pulse can be generated using a simple dual‐flake vdW ferroelectric NbOI2 emitter in which the polar axes of the two NbOI2 flakes are orthogonal. Both the chirality and the ellipticity can be manipulated by varying the separation distance and the orientations of their polar axes.
Baolong Zhang   +3 more
wiley   +1 more source

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