248 citations · 893 across the 23 of their papers we have counts for
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Experimental characterization of Gaussian quantum discord generated by four-wave mixing
Ulrich Vogl, Ryan T. Glasser, Quentin Glorieux +3
We experimentally determine the quantum discord present in two-mode squeezed vacuum generated by a four-wave mixing process in hot rubidium vapor. The frequency spectra of the disc…
Advanced Detection of Information in Optical Pulses with Negative Group Velocity
Ulrich Vogl, Ryan T. Glasser, Paul D. Lett
In this letter we experimentally demonstrate that the signal velocity, defined as the earliest time when a signal is detected above the realistic noise floor, may be altered by a r…
Laser Cooling of Dense Rubidium-Noble Gas Mixtures via Collisional Redistribution of Radiation
Ulrich Vogl, Anne Saß, Martin Weitz
We describe experiments on the laser cooling of both helium-rubidium and argon-rubidium gas mixtures by collisional redistribution of radiation. Frequent alkali-noble gas collision…
A Compact Source for Quantum Image Processing with Four-wave Mixing in Rubidium-85
Ulrich Vogl, Ryan T. Glasser, Paul D. Lett
We have built a compact light source for bright squeezed twin-beams at 795\,nm based on four-wave-mixing in atomic Rb vapor. With a total optical power of 400\,mW derived fr…
Demonstration of images with negative group velocities
Ryan T. Glasser, Ulrich Vogl, Paul D. Lett
We report the experimental demonstration of the superluminal propagation of multi-spatial-mode images via four-wave mixing in hot atomic vapor, in which all spatial sub-regions pro…
Stimulated generation of superluminal light pulses via four-wave mixing
Ryan T. Glasser, Ulrich Vogl, Paul D. Lett
We report on the four-wave mixing of superluminal pulses, in which both the injected and generated pulses involved in the process propagate with negative group velocities. Generate…