Arbitrarily accelerating space-time wave packets
Abstract
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.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jan 31, 2022
- Source ID
- 10.1364/ol.442885
Entities
People
- Ayman F Abouraddy
- Layton A. Hall
- Murat Yessenov
Organizations
- Office of Naval Research
- University of Central Florida