Spatial Beam Self-Cleaning in Second-Harmonic Generation

K. Krupa, R. Fona, A. Tonello, A. Labruyère, B. M. Shalaby, S. Wabnitz, F. Baronio, A. B. Aceves, G. Millot, V. Couderc

Результат исследования: Научные публикации в периодических изданияхстатьярецензирование

1 Цитирования (Scopus)


We experimentally demonstrate the spatial self-cleaning of a highly multimode optical beam, in the process of second-harmonic generation in a quadratic nonlinear potassium titanyl phosphate crystal. As the beam energy grows larger, the output beam from the crystal evolves from a highly speckled intensity pattern into a single, bell-shaped spot, sitting on a low energy background. We demonstrate that quadratic beam cleanup is accompanied by significant self-focusing of the fundamental beam, for both positive and negative signs of the linear phase mismatch close to the phase-matching condition.

Язык оригиналаанглийский
Номер статьи7204
Число страниц9
ЖурналScientific Reports
Номер выпуска1
СостояниеОпубликовано - 29 апр 2020


Подробные сведения о темах исследования «Spatial Beam Self-Cleaning in Second-Harmonic Generation». Вместе они формируют уникальный семантический отпечаток (fingerprint).