Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Applied Optics

Incoherent pump assisted atomic filter based on laser-induced optical anisotropy

Shuangqiang Liu, Yundong Zhang

Published Oct 11, 2012• 1 citation
Publisher

Abstract

We describe the effects of incoherent pump on an atomic filter based on laser-induced optical anisotropy in a three-level ladder system interacting with a strong pump polarized circularly and a weak probe polarized linearly. According to the analysis of the numerical simulation results with some comparison, at the same time of eliminating noise, the filter can enhance the probe's transmission or even the probe gain can be achieved without population inversion. Moreover, the incoherent pumping rate and the cell temperature performance are evaluated and measures are taken to improve the filter's transmission and tunability by selecting proper parameters.

DOI
10.1364/ao.51.007183

Related papers

Theoretical model of an atomic line filter based on the combination of a double selective pump

Zhenyu Zhu, Hanyang Li, Weimin Sun +1 more

We present a model of an atomic filter based on laser-induced optical anisotropy that is achieved by the combination of a double selective pump. Most of these kinds of atomic optical filters reported previously adopt only one pump to make the atoms populate on particular sublevels. In this paper, another pump is added to the filter system to make sure all the atoms are in the pump–probe cycle. The feasibility of the re-pump is analyzed by employing the rate equation, and the contribution of the re-pump to the filter is discussed under various conditions. Simulation results show that the re-pump can not only enhance the transmission of the filter, but also vary the transmission spectrum peak wavelength.

Applied Optics•Dec 21, 2016•2 citations

Theoretical model for an atomic optical filter based on optical anisotropy

Zhusong He, Yundong Zhang, Hao Wu +2 more

We develop a three-level theoretical model for atomic optical filters based on optical anisotropy induced by the circularly polarized pump field. Calculative results are in good agreement with experimental results reported previously [Opt. Lett27, 500 (2002)]. The filtering characteristics such as the functions of pump intensity, pump detuning, and cell temperature are studied, respectively. The theoretical analysis presented here is expected to be useful in investigating atomic optical filters and polarization spectroscopy.

Journal of the Optical Society of America B•Aug 18, 2009•13 citations

Effect of Vacuum-induced Interference on Probe Absorption and Dispersion of a Λ-type Three-level Atom

Hou Bang

We discuss the effects of the incoherent pumping in both probe and coupling channels on the absorption and dispersion of the probe laser with quantum interference. The incoherent population pumping in the coupling channel decreases the probe transparency. When decay rate in the coupling channel is greater than that in the probe channel, the incoherent population pumping in the probe channel can create the gain without inversion. The probe absorption pattern is upsidedown if the interference is present. When the decay rates in the probe and channels are equal, the incoherent pumping in the probe channel doesn't create the gain until the existence of the interference.

Journal of Sichuan Normal University•Jan 1, 2003•0 citations

Effect of vacuum-induced coherence on lasing without inversion in an equispaced three-level ladder system

Jun Qian, Chengpu Liu, Shangqing Gong

The effects of vacuum-induced coherence (VIC) on the properties of the absorption and gain of the probe field in an equispaced three-level ladder atomic system are investigated. It is found that lasing without inversion (LWI) is remarkably enhanced due to the effect of VIC in the case of the small incoherent pump rate.

Chinese Optics Letters•Jan 1, 2005•9 citations

Effect of vacuum-induced coherence on lasing without inversion in an equispaced three-level ladder system

Jun Qian, 刘呈普, 龚尚庆

The effects of vacuum-induced coherence (VIC) on the properties of the absorption and gain of the probe field in an equispaced three-level ladder atomic system are investigated. It is found that lasing without inversion (LWI) is remarkably enhanced due to the effect of VIC in the case of the small incoherent pump rate.

•Jan 1, 2005•0 citations

Laser-induced dispersion in a three-level system

Kalle‐Antti Suominen, Birger Stahlberg, Stig Stenholm

A theoretical calculation of the polarization changes of a weak probe laser beam as it traverses a strongly pumped gaseous atomic medium is presented. The medium is chosen to be a three-level cascade (J = 0–J = 1–J = 0) system. The polarization of the probe changes from linear to elliptical owing to the asymmetrical population transfer induced by a strong, circularly polarized pumping laser beam. We study this phenomenon as a function of laser intensities, laser detunings, and the relaxation parameters of the medium. We compare the predictions of the theory with results obtained from experimental studies of the neon 1s4(J = 1)–2p4(J = 2)–3s2(J = 1) system.

Journal of the Optical Society of America B•Sep 1, 1991•14 citations
We describe the effects of incoherent pump on an atomic filter based on laser-induced optical anisotropy in a three-level ladder system interacting with a strong pump polarized circularly and a weak probe polarized linearly. According to the analysis of the numerical simulation results with some comparison, at the same time of eliminating noise, the filter can enhance the probe's transmission or even the probe gain can be achieved without population inversion. Moreover, the incoherent pumping rate and the cell temperature performance are evaluated and measures are taken to improve the filter's transmission and tunability by selecting proper parameters.
We present a model of an atomic filter based on laser-induced optical anisotropy that is achieved by the combination of a double selective pump. Most of these kinds of atomic optical filters reported previously adopt only one pump to make the atoms populate on particular sublevels. In this paper, another pump is added to the filter system to make sure all the atoms are in the pump–probe cycle. The feasibility of the re-pump is analyzed by employing the rate equation, and the contribution of the re-pump to the filter is discussed under various conditions. Simulation results show that the re-pump can not only enhance the transmission of the filter, but also vary the transmission spectrum peak wavelength.
We develop a three-level theoretical model for atomic optical filters based on optical anisotropy induced by the circularly polarized pump field. Calculative results are in good agreement with experimental results reported previously [Opt. Lett27, 500 (2002)]. The filtering characteristics such as the functions of pump intensity, pump detuning, and cell temperature are studied, respectively. The theoretical analysis presented here is expected to be useful in investigating atomic optical filters and polarization spectroscopy.
We discuss the effects of the incoherent pumping in both probe and coupling channels on the absorption and dispersion of the probe laser with quantum interference. The incoherent population pumping in the coupling channel decreases the probe transparency. When decay rate in the coupling channel is greater than that in the probe channel, the incoherent population pumping in the probe channel can create the gain without inversion. The probe absorption pattern is upsidedown if the interference is present. When the decay rates in the probe and channels are equal, the incoherent pumping in the probe channel doesn't create the gain until the existence of the interference.
A theoretical calculation of the polarization changes of a weak probe laser beam as it traverses a strongly pumped gaseous atomic medium is presented. The medium is chosen to be a three-level cascade (J = 0–J = 1–J = 0) system. The polarization of the probe changes from linear to elliptical owing to the asymmetrical population transfer induced by a strong, circularly polarized pumping laser beam. We study this phenomenon as a function of laser intensities, laser detunings, and the relaxation parameters of the medium. We compare the predictions of the theory with results obtained from experimental studies of the neon 1s4(J = 1)–2p4(J = 2)–3s2(J = 1) system.