Manipulation of spatiotemporal photon distribution via chromatic aberration.
We demonstrate a spatiotemporal laser-pulse-shaping scheme that exploits the chromatic aberration in a dispersive lens. This normally harmful effect transforms the phase modulation into a beam-size modulation at the focal plane. In combination with the intricate diffraction effect via beam apodization, this method provides a spatiotemporal control of photon distribution with an accuracy of diffraction limit on a time scale of femtoseconds.
Li
Yuelin
Y
Accelerator Systems Division and Argonne Accelerator Institute, Argonne National Laboratory, Argonne, IL 60439, USA. ylli@aps.anl.gov
Chemerisov
Sergey
S