Arbitrarily accelerating space-time wave packets

被引：23

作者：

Hall, Layton A. ^{[1
]}

Yessenov, Murat ^{[1
]}

Abouraddy, Ayman F. ^{[1
]}

机构：

[1] Univ Cent Florida, Coll Opt & Photon, CREOL, Orlando, FL 32816 USA

来源：

OPTICS LETTERS | 2022年 / 47卷 / 03期

关键词：

FINITE-ENERGY; PULSED BEAMS; LIGHT; AIRY; PROPAGATION; VELOCITY;

D O I：

10.1364/OL.442885

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

All known realizations of optical wave packets that accelerate along their propagation axis, such as Airy wave packets in dispersive media or wave-front-modulated X-waves, exhibit a constant acceleration; that is, the group velocity varies linearly with propagation. Here we synthesize space-time wave packets that travel in free space with arbitrary axial acceleration profiles, including group velocities that change with integer or fractional exponents of the distance. Furthermore, we realize a composite acceleration profile: the wave packet accelerates from an initial to a terminal group velocity, before decelerating back to the initial value. These never-before-seen optical-acceleration phenomena are produced using the same experimental arrangement that precisely sculpts the wave packet's spatio-temporal spectral structure. (C) 2022 Optical Society of America

引用

页码：694 / 697

页数：4

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