Preparation of Rydberg states in ultracold Li-7 atoms by using coherent or non-coherent optical excitation

31st International Conference on Equations of State for Matter

Vilshanskaya, E.V.^1,2 ; Murashkin, D.A.^1,3 ; Saakyan, S.A.^1 ; Sautenkov, V.A.^1,4 ; Zelener, B.B.^1,3,5

Joint Institute for High Temperatures, Russian Academy of Sciences, Izhorskaya 13 Bldg 2, Moscow

125412, Russia^1

National Research University, Moscow Power Engineering Institute, Krasnokazarmennaya 14, Moscow

111250, Russia^2

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe Shosse 31, Moscow

115409, Russia^3

Lebedev Physical Institute, Russian Academy of Sciences, Leninsky Avenue 53, Moscow

119991, Russia^4

State Scientific Center of the Russian Federation, Institute for Theoretical and Experimental Physics, National Research Center Kurchatov Institute, Bolshaya Cheremushkinskaya 25, Moscow

117218, Russia^5

关键词: Atomic transition;    Coherent components;    Coherent resonances;    Energy spectra;    High sensitivity;    Lithium atoms;    Two-step excitation;    Ultra-cold;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/774/1/012164/pdf
DOI  :  10.1088/1742-6596/774/1/012164

来源: IOP

【 摘 要 】

Energy spectra of ultracold Rydberg lithium atoms are discussed. Our technique has been used for the experimental observation of coherent and non-coherent components of two-step excitation in Rydberg states. The high sensitivity of the technique has allowed us to record narrow coherent resonance at 2P-41D. The width of this resonance is 3 times less than width of non-coherent resonance. The coherent resonance is observed when the laser is detuned by ±803.5 MHz from the atomic transition 2P3/2.