Demonstration of atomic frequency comb memory for light with spin-wave storage (2009)
Afzelius, Mikael, Usmani, Imam, Amari, Atia, Lauritzen, Björn, Walther, Andreas, Simon, Christoph, ...
We present a light-storage experiment where the light is mapped onto an inhomogeneously broadened optical transition in a praseodymium-doped crystal, which is shaped into an atomic frequency comb....
Solid state quantum memory for photons at telecommunication wavelengths (2009)
Lauritzen, Björn, Minář, Jiří, De Riedmatten, Hugues, Afzelius, Mikael, Sangouard, Nicolas, Simon, Christoph, ...
We demonstrate experimentally a solid-state quantum memory for photons at telecommunication wavelengths. Weak light fields at the single photon level are stored for a time up to 600 ns in an...
Electric control of collective atomic coherence in an Erbium doped solid (2009)
Minář, Jiří, Lauritzen, Björn, De Riedmatten, Hugues, Afzelius, Mikael, Simon, Christoph, Gisin, Nicolas
We demonstrate fast and accurate control of the evolution of collective atomic coherences in an Erbium doped solid using external electric fields. This is achieved by controlling the inhomogeneous...
Ottaviani, Carlo, Simon, Christoph, De Riedmatten, Hugues, Afzelius, Mikael, Lauritzen, Bjoern, Sangouard, Nicolas, ...
The creation of single collective excitations in atomic ensembles via spontaneous Raman emission plays a key role in several quantum communication protocols, starting with the seminal DLCZ protocol...
A solid state light-matter interface at the single photon level (2008)
De Riedmatten, Hugues, Afzelius, Mikael, Staudt, Matthias, Simon, Christoph, Gisin, Nicolas
Coherent and reversible mapping of quantum information between light and matter is an important experimental challenge in quantum information science. In particular, it is a decisive milestone for...
Multi-Mode Quantum Memory based on Atomic Frequency Combs (2008)
Afzelius, Mikael, Simon, Christoph, De Riedmatten, Hugues, Gisin, Nicolas
An efficient multi-mode quantum memory is a crucial resource for long-distance quantum communication based on quantum repeaters. We propose a quantum memory based on spectral shaping of an...
Quantum Repeaters with Photon Pair Sources and Multi-Mode Memories (2007)
Simon, Christoph, De Riedmatten, Hugues, Afzelius, Mikael, Sangouard, Nicolas, Zbinden, Hugo, Gisin, Nicolas
We propose a quantum repeater protocol which builds on the well-known DLCZ protocol [L.M. Duan, M.D. Lukin, J.I. Cirac, and P. Zoller, Nature 414, 413 (2001)], but which uses photon pair sources in...
Sangouard, Nicolas, Simon, Christoph, Afzelius, Mikael, Gisin, Nicolas
We present a detailed analysis of a quantum memory for photons based on controlled and reversible inhomogeneous broadening (CRIB). The explicit solution of the equations of motion is obtained in the...
Staudt, Matthias U., Hastings-Simon, Sara R., Afzelius, Mikael, Jaccard, Didier, Tittel, Wolfgang, Gisin, Nicolas
We studied optical coherence properties of the 1.53 $\mu$m telecommunication transition in an Er$^{3+}$-doped silicate optical fiber through spectral holeburning and photon echoes. We find...
Hastings-Simon, Sara R., Staudt, Matthias U., Afzelius, Mikael, Baldi, Pascal, Jaccard, Didier, Tittel, Wolfgang, ...
We present measurements of the linear Stark effect on the $^{4}$I$_{15/2} \to$ $^{4}$I$_{13/2}$ transition in an Er$^{3+}$-doped proton-exchanged LiNbO$_{3}$ crystalline waveguide and an...
Dual-broadband pure rotational coherent anti-Stokes Raman spectroscopy was investigated in terms of thermometry and species concentration measurement for studies of combustion. The modelling of...