Effects of disorder on optical and electron spin linewidths in Er 3+ ,Sc 3+ :Y 2 SiO 5
Effects of disorder on optical and electron spin linewidths in Er 3+ ,Sc 3+ :Y 2 SiO 5
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无序对Er 3 ,Sc 3 :Y 2 SiO 5 光学和电子自旋线宽的影响
DOI:
10.1016/j.optmat.2016.09.039
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发表时间:
2017
影响因子:
3.9
通讯作者:
Goldner, P.
中科院分区:
文献类型:
--
作者:
Welinski, S.;Thiel, C.W.;Dajczgewand, J.;Ferrier, A.;Cone, R.L.;Macfarlane, R.M.;Chanelière, T.;Louchet-Chauvet, A.;Goldner, P.
The material Er3+:Y2SiO5co-doped with Sc3+is investigated for applications in optical quantum storage and signal processing. Replacing 1% of the Y3+in the crystal with Sc3+introduces static strain into the lattice that increases the inhomogeneous linewidth of the Er3+optical transition at 1.536 μm to 25 GHz, a 50-fold increase compared to Er3+:Y2SiO5samples without Sc3+co-doping. Electron paramagnetic resonance spectroscopy shows that electron spin linewidths are also strongly increased, confirming the previously proposed mechanism for decoherence suppression by using disorder to inhibit resonant spin-spin interactions. Analysis of the spin line broadening as a function of magnetic field orientation indicates the presence of contributions that cannot be modeled by a simple change in the electronicgtensor. Optical homogeneous linewidths of less than 2 kHz are observed for a weak magnetic field of 0.1 T and also for fields greater than 2 T with the field oriented near theD2crystal axis and at a temperature of 1.7 K. These results suggest that this material can be useful for high-bandwidth classical and quantum information processing in the telecom C-band.
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DOI:
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发表时间:
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期刊:
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