TY - JOUR
T1 - Beat-note interferometer for direct phase measurement of photonic information
AU - Chen, Yong Fan
AU - Liu, Yu Chen
AU - Tsai, Zen Hsiang
AU - Wang, Shih Hao
AU - Yu, Ite A.
PY - 2005/9
Y1 - 2005/9
N2 - We describe a simple method of the beat-note interferometer that directly and dynamically measures the phase shift of light pulses induced by highly dispersive samples. Using the method, we show intuitively that the storage and retrieval of light pulses in a medium due to the effect of electromagnetically induced transparency is a coherent process and, quantitatively, that there is no observable phase shift caused by the process. This method is sensitive enough that it can be used to measure the phase of a light pulse with energy on the order of a dozen photons.
AB - We describe a simple method of the beat-note interferometer that directly and dynamically measures the phase shift of light pulses induced by highly dispersive samples. Using the method, we show intuitively that the storage and retrieval of light pulses in a medium due to the effect of electromagnetically induced transparency is a coherent process and, quantitatively, that there is no observable phase shift caused by the process. This method is sensitive enough that it can be used to measure the phase of a light pulse with energy on the order of a dozen photons.
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U2 - 10.1103/PhysRevA.72.033812
DO - 10.1103/PhysRevA.72.033812
M3 - Article
AN - SCOPUS:28844466380
SN - 1050-2947
VL - 72
JO - Physical Review A - Atomic, Molecular, and Optical Physics
JF - Physical Review A - Atomic, Molecular, and Optical Physics
IS - 3
M1 - 033812
ER -