Bragg spectroscopy in optical lattices

Author

Ernst, Philipp T. ; Götze, Sören ; Krauser, Jasper ; Pyka, Karsten ; Sengstock, Klaus

Author_Institution

Inst. fur Laser-Phys., Univ. Hamburg, Hamburg, Germany

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

Ultracold atoms with optical lattices provide an ideal model system. This paper presents measurement of a momentum-resolved excitation spectrum in such a quantum model system of a crystal by means of Bragg spectroscopy. For the first time, first and second bands were measured with high resolution along a slice through the whole Brillouin zone. Measurements were performed at several lattice depths and, furthermore, the density and pulse area dependence of the excitation energy were systematically studied.

Keywords

Brillouin zones; optical lattices; quantum optics; Bragg spectroscopy; Brillouin zone; crystal quantum model system; excitation energy; momentum-resolved excitation spectrum measurement; optical lattice; Area measurement; Atom optics; Atomic measurements; Density measurement; Energy measurement; Energy resolution; Lattices; Pulse measurements; Spectroscopy; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5192465

Filename

5192465