TY - JOUR
T1 - Large-angle adjustable coherent atomic beam splitter by Bragg scattering
AU - Koolen, A.E.A.
AU - Jansen, G.T.
AU - Domen, K.F.E.M.
AU - Beijerinck, H.C.W.
AU - Leeuwen, van, K.A.H.
PY - 2002
Y1 - 2002
N2 - Using a "monochromatic" (single-axial-velocity) and slow (250 m/s) beam of metastable helium atoms, we realize up to eighth-order Bragg scattering and obtain a splitting angle of 6 mrad at low laser power (3 mW). This corresponds to a truly macroscopic separation of 12 mm on the detector. For fifth-order scattering, we have observed several oscillations of the splitting ratio when varying the laser power ("Pendellosung oscillations"). The large splitting angle, the adjustable splitting ratio, and the cleanness of the split beams, with 200- mu m rms width each, make the beam splitter ideal for a large-enclosed-area atom interferometer
AB - Using a "monochromatic" (single-axial-velocity) and slow (250 m/s) beam of metastable helium atoms, we realize up to eighth-order Bragg scattering and obtain a splitting angle of 6 mrad at low laser power (3 mW). This corresponds to a truly macroscopic separation of 12 mm on the detector. For fifth-order scattering, we have observed several oscillations of the splitting ratio when varying the laser power ("Pendellosung oscillations"). The large splitting angle, the adjustable splitting ratio, and the cleanness of the split beams, with 200- mu m rms width each, make the beam splitter ideal for a large-enclosed-area atom interferometer
U2 - 10.1103/PhysRevA.65.041601
DO - 10.1103/PhysRevA.65.041601
M3 - Article
SN - 1050-2947
VL - 65
SP - 041601-1/4
JO - Physical Review A: Atomic, Molecular and Optical Physics
JF - Physical Review A: Atomic, Molecular and Optical Physics
IS - 4
M1 - 041601
ER -