Resonant Coherent Excitation of Fast Hydrogen Atoms in Front of a LiF(001) Surface

Journal Article · Mon Dec 01 00:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.79.4477· OSTI ID:565137

Auth, C; Mertens, A; Winter, H ^[1]; Borisov, A G ^[2]; Garcia de Abajo, F J ^[3]

---

1. Institut fuer Physik der Humboldt-Universitaet zu Berlin, Invalidenstrasse 110, D-10115 Berlin (Germany)
2. Laboratoire des Collisions Atomiques et Moleculaires, (Unite de Recherche associee au CNRS 281), Universite Paris-Sud Batiment 351, F-91405 Orsay Cedex (France)
3. Departamento de CCIA, Facultad de Informatica, UPV/EHU, Aptdo.649, E-20080 San Sebastian (Spain)

We have scattered protons and hydrogen atoms with energies of some keV from a LiF(001) surface under a grazing angle of incidence. From the intensity of Lyman-{alpha} radiation (transition from n=2 to n=1, {lambda}=121.6 nm ) as a function of projectile energy for different azimuthal orientations of the crystal surface, we find clear evidence for a resonant coherent excitation of n=2 states of hydrogen atoms in the oscillating electric field in front of the insulator surface. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 565137
• Journal Information: Physical Review Letters, Vol. 79, Issue 22; Other Information: PBD: Dec 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HYDROGEN
COLLISIONS
LITHIUM FLUORIDES
ATOM COLLISIONS
HYDROGEN IONS 1 PLUS
EXCITATION
KEV RANGE 01-10
CRYSTALS
SURFACES
RESONANCE
LYMAN LINES