Journal
PHYSICAL REVIEW LETTERS
Volume 124, Issue 4, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.124.043901
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Funding
- Air Force Office of Scientific Research [FA9550-19-1-0032]
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We predict the emergence of attosecond-duration structures on an optical carrier wave when intense, long-wavelength pulses propagate through bulk media with weak anomalous dispersion. Under certain conditions, these structures can undergo a new type of carrier-resolved supercritical collapse, forming infinite spatiotemporal gradients in the field. The mathematical conditions for the onset of this singularity are briefly overviewed, and we demonstrate with a full 3D + time (3 + 1) simulation that such structures persist under realistic conditions for a 10 micron laser pulse propagating in air.
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