Encinas-Sanz F, Melle Sonia, Calderón Oscar G
Departmento de Optica, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain.
Phys Rev Lett. 2004 Nov 19;93(21):213904. doi: 10.1103/PhysRevLett.93.213904. Epub 2004 Nov 17.
We report the first direct experimental observation of the fast dynamics (nanosecond scale) of complex two-dimensional transverse patterns in broad area lasers. The laser emission bright peaks forming the transverse patterns are observed to be aperiodically flashing in time with different growing rates. These optical filaments do not move along the cross section during their lifetime, which is close to 2 ns. The experimental observations have also been reproduced by numerical integration of the Maxwell-Bloch equations.
我们报告了对大面积激光器中复杂二维横向模式的快速动力学（纳秒尺度）的首次直接实验观测。观察到形成横向模式的激光发射亮峰在时间上以不同的增长速率非周期性地闪烁。这些光丝在其接近2纳秒的寿命期间不会沿横截面移动。通过麦克斯韦 - 布洛赫方程的数值积分也重现了实验观测结果。
