Results 201 to 210 of about 118,579 (376)

Unravelling the Spatiotemporal Exciton Dynamics in Electrically Pumped Organic Laser Diodes

open access: yesLaser &Photonics Reviews, EarlyView.
High‐speed OLED measurements combined with advanced simulations reveal how singlet, triplet, and polaron dynamics drive key loss channels that hinder organic semiconductor lasing, while presenting strategies to overcome them. Abstract Organic materials offer wide‐band emission covering regions of the spectrum unachievable by conventional semiconductors.
Adam Bickerdike   +2 more
wiley   +1 more source

Revisiting thermoelectric transport properties through a band nonparabolicity factor. [PDF]

open access: yesNatl Sci Rev
Zhu J   +9 more
europepmc   +1 more source

Parametrix for a degenerate parabolic equation

open access: yesProceedings of the Japan Academy, Series A, Mathematical Sciences, 1979
Iwasaki, Chisato, Iwasaki, Nobuhisa
openaire   +2 more sources

Single‐Pulse Nanomorphology Governs Laser‐Induced Periodic Surface Structure Formation on Metals

open access: yesLaser &Photonics Reviews, EarlyView.
Ultrashort pulse ablation enables generation of self‐organized periodic structures, where evolving nanomorphology controls pulse‐to‐pulse feedback. In noble metals, nanospikes form after the first pulse and localize surface waves, preventing periodic field distributions and thus suppressing their formation.
Nicolas Thomae   +7 more
wiley   +1 more source

Generation of Two‐Cycle Light Bullets With 2.0 mJ Energy via Self‐Compression of 5‐µm Pulses in Zinc Sulfide

open access: yesLaser &Photonics Reviews, EarlyView.
Simultaneous temporal soliton self‐compression with simultaneous formation of a radial Townes profile is reported for millijoule pulses at 4.9 µm wavelength in ZnS. Pulses as short as 37 fs are generated in a 1‐kHz pulse train. The compression regime appears below the onset of filamentation, yielding two‐cycle pulses with 2.0 mJ energy which translates
Martin Bock   +3 more
wiley   +1 more source

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