Resonance overlap criterion for H atom ionization by circularly polarized microwave fields

Journal Article · Wed Jan 01 00:00:00 EST 1997 · Physical Review A

DOI:https://doi.org/10.1103/PhysRevA.55.568· OSTI ID:435208

Sacha, K; Zakrzewski, J ^[1]

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1. Instytut Fizyki imienia Mariana Smoluchowskiego, Uniwersytet Jagiellonski, ul. Reymonta 4, 30-059 Krakow (Poland)

The threshold for H atom ionization by circularly polarized microwave fields is discussed within the classical mechanics framework for high microwave frequencies. The Chirikov resonance overlap criterion predictions are compared with estimates obtained adopting the renormalization method. It is shown that the ionization threshold is highly sensitive to the helicity of microwaves. Among all possible initial electronic orbits, those of medium eccentricity are the first to ionize. The results obtained indicate that collisions with the nucleus play a negligible role for the onset of ionization. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 435208
• Journal Information: Physical Review A, Vol. 55, Issue 1; Other Information: PBD: Jan 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HYDROGEN
IONIZATION
PHOTOIONIZATION
RESONANCE
POLARIZATION
MICROWAVE RADIATION
CLASSICAL MECHANICS
RENORMALIZATION
THRESHOLD ENERGY
PHOTON-ATOM COLLISIONS
orbital calculations