Subcycle Pulsed Focused Vector Beams

Journal Article · Fri Dec 22 00:00:00 EST 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.97.253902· OSTI ID:20861523

Qiang, Lin ^[1]; Jian, Zheng ^[1]; Becker, Wilhelm ^[2]

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1. Institute of Optics, Department of Physics, Zhejiang University, Hangzhou 310027 (China)
2. Max-Born-Institut, Max-Born-Strasse 2a, 12489 Berlin (Germany)

An accurate description of a subcycle pulsed beam (SCPB) is presented based on the complex-source model. The fields are exact solutions of Maxwell's equations and applicable to a focused pulsed beam with a pulse duration down to and below one cycle of the carrier wave and with arbitrary polarization state. Depending on the pulse duration, the pulse is blueshifted, and its wings are chirped. This effect, which we refer to as 'self-induced blueshift' goes beyond the carrier-envelope description. The corresponding phase is a temporal analog of the Gouy phase. The energy gain of a relativistic electron swept over by an SCPB is very sensitive to the proper form chosen to describe the pulse.

• OSTI ID: 20861523
• Journal Information: Physical Review Letters, Vol. 97, Issue 25; Other Information: DOI: 10.1103/PhysRevLett.97.253902; (c) 2006 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
43 PARTICLE ACCELERATORS
ELECTRONS
EXACT SOLUTIONS
MAXWELL EQUATIONS
POLARIZATION
PULSES
RELATIVISTIC RANGE