Influence of ellipticity on harmonic generation

We present results of experiments testing the influence of elliptical polarization on the production of high-order harmonics. Experiments were conducted both with a 600-nm, 1-psec dye laser and with an 825-nm, 140-fsec Cr:LiSAF[sub 6] (Cr:LiSAF) laser system, over a wide range of intensities and tar...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 1993-11, Vol.48 (5A), p.R3437-R3440
Main Authors: BUDIL, K. S, SALIERES, P, L'HUILLIER, A, DITMIRE, T, PERRY, M. D
Format: Article
Language:English
Subjects:
661300 - Other Aspects of Physical Science- (1992-)
ARGON
Atomic and molecular physics
Atomic properties and interactions with photons
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
DYE LASERS
ELEMENTS
ELLIPSOMETRY
Exact sciences and technology
FLUIDS
Frequency conversion
harmonic generation, including high-order harmonic generation
FREQUENCY MIXING
Fundamental areas of phenomenology (including applications)
GASES
HARMONIC GENERATION
Harmonic generation, frequency conversion
LASERS
LIQUID LASERS
MEASURING METHODS
Multiphoton ionization and excitation to highly excited states (e.g., rydberg states)
Multiphoton ionization and excitation to highly excited states (eg, Rydberg states)
NEON
Nonlinear optics
NONMETALS
OPTICAL PUMPING
Optics
PERTURBATION THEORY
Photon interactions with atoms
Physics
POLARIZATION
PULSES
PUMPING
RARE GASES
SENSITIVITY ANALYSIS
TARGETS
XENON
YIELDS
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Summary:We present results of experiments testing the influence of elliptical polarization on the production of high-order harmonics. Experiments were conducted both with a 600-nm, 1-psec dye laser and with an 825-nm, 140-fsec Cr:LiSAF[sub 6] (Cr:LiSAF) laser system, over a wide range of intensities and target gases (xenon, argon, and neon), using a detection system with a dynamical range of more than three orders of magnitude. The decrease of the harmonic strength with the ellipticity of the pump beam is rather slow for the low-order harmonics, and becomes much steeper for the high-order harmonics. We compare some of these data with the predictions of lowest-order perturbation theory.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.48.R3437