Er3+:LiYF4 is a material whereo ptical inhomogeneous linewidths are smaller than hyperfine splittings, which could be advantageous for quantum information processing protocols. We investigated the Zee- man and hyperfine structures under magnetic field by optical spectroscopy at 1.5 μm and found a good agreement with calculations based on crystal field wavefunctions. Since Zeeman splittings have a non- linear dependance on the magnetic field, this calculations could be useful to estimate energy level structures for arbitrary field strengths and orientations. Coherence lifetimes have been measured on a 100ppm erbium doped sample under a 2.2T magnetic field. Values up to 4.7 μs have been observed, with an exponential decay of the echo intensity as a function the pulse delay.
Energy level structure and optical dephasing under magnetic field in Er3+:LiYF4 at 1.5 μm
TONCELLI, ALESSANDRA;TONELLI, MAURO;
2016-01-01
Abstract
Er3+:LiYF4 is a material whereo ptical inhomogeneous linewidths are smaller than hyperfine splittings, which could be advantageous for quantum information processing protocols. We investigated the Zee- man and hyperfine structures under magnetic field by optical spectroscopy at 1.5 μm and found a good agreement with calculations based on crystal field wavefunctions. Since Zeeman splittings have a non- linear dependance on the magnetic field, this calculations could be useful to estimate energy level structures for arbitrary field strengths and orientations. Coherence lifetimes have been measured on a 100ppm erbium doped sample under a 2.2T magnetic field. Values up to 4.7 μs have been observed, with an exponential decay of the echo intensity as a function the pulse delay.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
