Research output: Contribution to journal › Article › peer-review
Collective radiation effects in rubidium vapor beyond the yoked superradiance. / Pulkin, Sergey; Korshok, Irina; Kalinichev, Alexey; Balabas, Mikhail; Ivanova, Tatiana; Ivanov, Denis.
In: Journal of Physics B: Atomic, Molecular and Optical Physics, Vol. 53, No. 17, 175003, 14.09.2020.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Collective radiation effects in rubidium vapor beyond the yoked superradiance
AU - Pulkin, Sergey
AU - Korshok, Irina
AU - Kalinichev, Alexey
AU - Balabas, Mikhail
AU - Ivanova, Tatiana
AU - Ivanov, Denis
N1 - Publisher Copyright: © 2020 IOP Publishing Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/9/14
Y1 - 2020/9/14
N2 - It is known that being pumped with infrared light an ensemble of Rb atoms can demonstrate an upconversion and re-emit blue light at 420 nm. In pulsed regime this radiation can be enhanced by collective effects, which is called yoked superradiance. Here we demonstrate that not only the blue-light emission is affected by collective effects, but also the red light scattering. This becomes possible due to the coupling between different non-diagonal elements of the atomic density matrix. We develop a simple self-consistent model of the coupled atom-field system and numerically simulate its dynamics. We test the sensitivity of blue- and red-light pulse profiles on the density of Rb atoms and the background gas pressure.
AB - It is known that being pumped with infrared light an ensemble of Rb atoms can demonstrate an upconversion and re-emit blue light at 420 nm. In pulsed regime this radiation can be enhanced by collective effects, which is called yoked superradiance. Here we demonstrate that not only the blue-light emission is affected by collective effects, but also the red light scattering. This becomes possible due to the coupling between different non-diagonal elements of the atomic density matrix. We develop a simple self-consistent model of the coupled atom-field system and numerically simulate its dynamics. We test the sensitivity of blue- and red-light pulse profiles on the density of Rb atoms and the background gas pressure.
KW - collective effects
KW - Rb vapor
KW - superradiance
UR - http://www.scopus.com/inward/record.url?scp=85088376966&partnerID=8YFLogxK
U2 - 10.1088/1361-6455/ab9998
DO - 10.1088/1361-6455/ab9998
M3 - Article
AN - SCOPUS:85088376966
VL - 53
JO - Journal of the European Optical Society Part B: Quantum Optics
JF - Journal of the European Optical Society Part B: Quantum Optics
SN - 0953-4075
IS - 17
M1 - 175003
ER -
ID: 74225187