Temporal reshaping of two-dimensional pulses

被引：0

作者：

Sheppard, Colin J. R. ^{[1
]}

Kou, Shan Shan ^{[2
]}

Lin, Jiao ^{[2
]}

Sharma, Manjula ^{[3
]}

Barbastathis, George ^{[4
]}

机构：

[1] Ist Italiano Tecnol, I-16163 Genoa, Italy

[2] Univ Melbourne, Sch Phys, Parkville, Vic 3010, Australia

[3] Univ Sydney, Sch Phys, Sydney, NSW 2006, Australia

[4] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

来源：

OPTICS EXPRESS | 2014年 / 22卷 / 26期

基金：

澳大利亚研究理事会;

关键词：

CYCLE ELECTROMAGNETIC PULSES; FREE-SPACE PROPAGATION; SUBCYCLE PULSES; GAUSSIAN BEAMS; TIME PROFILES; LIGHT-PULSES; DIFFRACTION; EVOLUTION; WAVES;

D O I：

10.1364/OE.22.032016

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An analytic study of complete cylindrical focusing of pulses in two dimensions is presented, and compared with the analogous three-dimensional case of focusing over a complete sphere. Such behavior is relevant for understanding the limiting performance of ultrafast, planar photonic and plasmonic devices. A particular spectral distribution is assumed that contains finite energy. Separate ingoing and outgoing pulsed waves are considered, along with the combination that would be generated in free space by an ingoing wave. It is shown that for the two dimensional case, in order to produce a temporally symmetrical pulse at the focus, an asymmetric pulse must be launched. A symmetrical outgoing pulse is generated from a source with asymmetric time behavior, or an anti-symmetric input pulse. These results are very different from the corresponding three-dimensional case, and imply fundamental limitations on the performance of ultrafast, tightly focused, two-dimensional devices. (C) 2014 Optical Society of America

引用

页码：32016 / 32025

页数：10

共 32 条

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