Arbitrarily accelerating space-time wave packets
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 wav...
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| Veröffentlicht in: | Optics letters 2022-02, Vol.47 (3), p.694-697 |
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| container_title | Optics letters |
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| creator | Hall, Layton A Yessenov, Murat Abouraddy, Ayman F |
| description | 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. |
| doi_str_mv | 10.1364/ol.442885 |
| format | Article |
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| fulltext | fulltext |
| identifier | ISSN: 0146-9592 |
| ispartof | Optics letters, 2022-02, Vol.47 (3), p.694-697 |
| issn | 0146-9592 1539-4794 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_2624654614 |
| source | Optica Publishing Group Journals |
| subjects | Acceleration Deceleration Group velocity Inertia Propagation velocity Spacetime Wave dispersion Wave fronts Wave packets Wave propagation |
| title | Arbitrarily accelerating space-time wave packets |
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