TY  - JOUR
AU  - Kukharchyk, Nadezhda
AU  - Sholokhov, Dmitriy
AU  - Morozov, Oleg
AU  - Korableva, Stella L.
AU  - Kalachev, Alexey A.
AU  - Bushev, Pavel
TI  - Electromagnetically induced transparency in a mono-isotopic 167 Er: 7 LiYF 4 crystal below 1 Kelvin: microwave photonics approach
JO  - Optics express
VL  - 28
IS  - 20
SN  - 1094-4087
CY  - Washington, DC
PB  - Soc.
M1  - FZJ-2020-05093
SP  - 29166 -
PY  - 2020
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - 33114821
UR  - <Go to ISI:>//WOS:000581074800037
DO  - DOI:10.1364/OE.400222
UR  - https://juser.fz-juelich.de/record/888650
ER  -