Porras Miguel A, Valiulis Gintaras, Di Trapani Paolo
Departamento de Física Aplicada, ETSIM, Universidad Politécnica de Madrid, Rios Rosas 21, 28003 Madrid, Spain.
Phys Rev E Stat Nonlin Soft Matter Phys. 2003 Jul;68(1 Pt 2):016613. doi: 10.1103/PhysRevE.68.016613. Epub 2003 Jul 24.
We study Bessel X waves with cone dispersion propagating in free space and dispersive media. Their propagation features find simple explanation when viewed as cylindrically symmetric versions of the so-called tilted pulses. All previously reported cases of suppression of normal material group velocity dispersion by using angular dispersion in tilted pulses, pulsed Bessel beams, and Bessel X waves are compared and presented in a unified way. We show that stationary, spatiotemporal localized Bessel X-wave transmission is also possible in the anomalous dispersion regime.
我们研究了在自由空间和色散介质中传播的具有锥形色散的贝塞尔X波。当将其视为所谓倾斜脉冲的圆柱对称版本时，它们的传播特性可得到简单解释。对所有先前报道的通过倾斜脉冲、脉冲贝塞尔光束和贝塞尔X波中的角色散来抑制正常材料群速度色散的情况进行了比较，并以统一的方式呈现。我们表明，在反常色散 regime 中，静止的、时空局域化的贝塞尔X波传输也是可能的。
