Chirped Attosecond Photoelectron Spectroscopy

Journal Article · Fri Feb 17 00:00:00 EST 2006 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.96.0· OSTI ID:20778612

Yudin, G L ^[1]; Bandrauk, A D ^[1]; Corkum, P B ^[2]

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1. Laboratoire de Chimie Theorique, Universite de Sherbrooke, Sherbrooke, Quebec J1K 2R1 (Canada)
2. National Research Council of Canada, Ottawa, Ontario K1A 0R6 (Canada)

We study analytically the photoionization of a coherent superposition of electronic states and show that chirped pulses can measure attosecond time scale electron dynamics just as effectively as transform-limited attosecond pulses of the same bandwidth. The chirped pulse with a frequency-dependent phase creates the interfering photoelectron amplitudes that measure the electron dynamics. We show that at a given pump-probe time delay the differential asymmetry oscillates as a function of photoelectron energy. Our results suggest that the important parameter for attosecond science is not the pulse duration, but the bandwidth of phased radiation.

• OSTI ID: 20778612
• Journal Information: Physical Review Letters, Vol. 96, Issue 6; Other Information: DOI: 10.1103/PhysRevLett.96.063002; (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

74 ATOMIC AND MOLECULAR PHYSICS
ASYMMETRY
ELECTRONIC STRUCTURE
ELECTRONS
FREQUENCY DEPENDENCE
PHOTOELECTRON SPECTROSCOPY
PHOTOIONIZATION
PULSES
TIME DELAY