Stuttgart 2012 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 61: Quanteneffekte: Lichtstreuung

Q 61.1: Vortrag

Freitag, 16. März 2012, 10:30–10:45, V7.01

Excitation of a single atom with a temporally shaped light pulsesSyed Abdullah Aljunid1, Hoang Lan Dao2, •Gleb Maslennikov1, Yimin Wang1, Valerio Scarani1,3, and Christian Kurtsiefer1,31Centre for Quantum Technlogies, National University of Singapore — 2University of Twente — 3Department of Physics, National University of Singapore

We investigate the interaction between a single atom and optical pulses with a controlled temporal envelope. By switching the temporal shape from rising exponential to square profile, we show that the rising exponential envelope leads to higher excitation probability for a fixed photon number. The atomic transition saturates for ≈ 100 photons in a pulse. Rabi oscillations with 100 MHz frequency are visible in detected fluorescence for excitations powers of ≈ 1300 photons in a 15 ns pulse.

[1] Yimin Wang et al., Phys. Rev. A. 83 063842 (2011)

[2] M. Stobińska et al., EPL 86 14007 (2009)

[3] I. Gerhardt et al., Phys. Rev. A 79 011402(R) (2009)

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