5 citations · 8 across the 5 of their papers we have counts for
5 papers
Observations of photon echo enhancement in an ultraslow light regime
J. Hahn, B. S. Ham
Using spectral hole-burning-based ultraslow group velocity in a dilute solid medium, we report enhanced photon echo efficiency three orders of magnitude higher than that in a nonsl…
Ultralong Photon Echo Storage Using Optical Locking
B. S. Ham, J. Hahn
An ultralong photon storage with more than 50% retrieval efficiency is presented in the three-pulse photon echoes by using a pair of control pulses, where the control pulses play t…
Phase Locked Photon Echoes for Near-Perfect Retrieval Efficiency and Extended Storage Time
B. S. Ham, J. Hahn
Quantum storage of light in a collective ensemble of atoms plays an important role in quantum information processing. Consisting of a quantum repeater together with quantum entangl…
Slow light enhanced photon echoes
J. Hahn, B. S. Ham
We report a slow light-enhanced photon echo method, whose retrieval efficiency is two orders of magnitude higher than that of conventional photon echoes. The enhanced photon echo e…
Ultralong trapping of light using double spin coherence gratings
B. S. Ham, J. Hahn
Ultralong trapping of light has been observed in an optically dense three-level solid medium interacting with a pair of counterpropagating coupling fields. Unlike the light trappin…