Ren Zhijun, Wu Qiong, Mao Hefa, Shi Yile, Fan Changjiang
Institute of Information Optics, Zhejiang Normal University, Jinhua 321004, China.
Opt Express. 2013 Feb 25;21(4):4481-92. doi: 10.1364/OE.21.004481.
Airy-Bessel configuration wave packets are believed to be exotic localized linear light bullets (LLBs) without spatiotemporal spread during propagation in free space. By carefully studying the propagation of ideal Airy-Bessel wave packets (ABWs) in free space, several new results were obtained. Cubic spatially induced dispersion (SID) slightly broadens Airy pulses while quadratic SID cannot temporally change ABWs transmission modes. Hence, ABWs, although remaining as superior localized linear wave packets, cannot be regarded as absolute LLBs. Moreover, cubic SID also decreases the longitudinal acceleration of the Airy pulse peak during propagation.
艾里 - 贝塞尔构型波包被认为是奇特的局域化线性光子弹（LLBs），在自由空间传播过程中没有时空展宽。通过仔细研究理想艾里 - 贝塞尔波包（ABWs）在自由空间中的传播，获得了几个新结果。三次空间诱导色散（SID）会使艾里脉冲略有展宽，而二次SID不会在时间上改变ABWs的传输模式。因此，ABWs虽然仍然是优越的局域化线性波包，但不能被视为绝对的LLBs。此外，三次SID在传播过程中也会降低艾里脉冲峰值的纵向加速度。
