Electromagnetically induced transparency in a mono-isotopic 167Er:7LiYF4 crystal below 1 Kelvin: microwave photonics approach.
Electromagnetically induced transparency in a mono-isotopic 167Er:7LiYF4 crystal below 1 Kelvin: microwave photonics approach.
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DOI：
10.1364/oe.400222
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发表时间：
2020-05
期刊：
影响因子：
3.8
通讯作者：
N. Kukharchyk;D. Sholokhov;O. Morozov;S. L. Korableva;A. Kalachev;P. Bushev
中科院分区：
文献类型：
--
作者：
N. Kukharchyk;D. Sholokhov;O. Morozov;S. L. Korableva;A. Kalachev;P. Bushev
电磁诱导的透明性允许吸收性质的可控变化，这可以在包括光学量子存储器在内的许多应用中被利用。本文研究了167Er：7LiYF4晶体在低磁场和超低温下的电磁感应透明。该实验测量方案采用了光矢量网络分析，提供了高精度的幅度、相位和群延时测量，并为实现光量子存储器设置的完全片上集成铺平了道路。我们发现亚开尔文温度是在低场下观察这种晶体中电磁诱导透明所必需的。在考虑声子瓶颈效应的情况下，理论与实验符合得很好。
Electromagnetically induced transparency allows for the controllable change of absorption properties, which can be exploited in a number of applications including optical quantum memory. In this paper, we present a study of the electromagnetically induced transparency in a 167Er:7LiYF4 crystal at low magnetic fields and ultra-low temperatures. The experimental measurement scheme employs an optical vector network analysis that provides high precision measurement of amplitude, phase and group delay and paves the way towards full on-chip integration of optical quantum memory setups. We found that sub-Kelvin temperatures are the necessary requirement for observing electromagnetically induced transparency in this crystal at low fields. A good agreement between theory and experiment is achieved by taking into account the phonon bottleneck effect.