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

Physical Review Letters

Phase Control of Spontaneous Emission

Emmanuel Paspalakis, P. L. Knight

Published Jul 13, 1998• 411 citations
Publisher

Abstract

We use the phase difference of two lasers with equal frequencies for the control of spontaneous emission in a four-level system. Effects such as extreme spectral narrowing and selective and total cancellation of fluorescence decay are shown as the relative phase is varied.
DOI
10.1103/physrevlett.81.293

Related papers

Phase Control of Spontaneous Emission of a Three-Level Atom in Two Bichromatic Fields

Xiaoxia Li, Xiangming Hu, Shi Wen-Xing +3 more

We use the relative phase difference of two bichromatic fields of equal frequency differences for the coherent control of spontaneous emission of a three-level atom in the Λ configuration. Effects such as selective and total cancellation of fluorescence decay are obtained simply by varying the phase difference. The phase dependence of fluorescence spectra is attributed to the fact that the four different field components induce the transitions in a closed loop configuration.

Chinese Physics Letters•Jan 30, 2006•10 citations

Amplitude and phase control of spontaneous emission

Fazal Ghafoor, Shi-Yao Zhu, Muhammad Suhail Zubairy

We consider spontaneous emission in a four-level atomic system driven by three fields. It is shown that by controlling the phase and the amplitude of the driving fields a wide variety of spectral behavior can be obtained, ranging from a very narrow single spectral line to up to six spectral of varying widths.

Physical Review A•Jun 14, 2000•135 citations

AMPLITUDE CONTROL OF SPONTANEOUS EMISSION

Rizwan Ahmed, Tasnim Azim

We study the control of spontaneous emission in four-level atomic system driven by two fields. We show that with the variation of dynamical variable, namely, Rabi frequency, a wide variety of spectral behavior can be obtained, including extreme spectral narrowing. In our system, the spectrum of the spontaneous emission is independent of the phase associated with microwave field.

International Journal of Modern Physics B•Oct 20, 2009•0 citations

Coherent control of spontaneous emission in a four-level system

Emmanuel Paspalakis, P. L. Knight

In this article we study the potential for coherently control spontaneous emission in a four-level scheme. Our control parameter is the relative phase of two laser fields having the same angular frequency. We investigate in detail the trapping conditions, the population dynamics and the behaviour of the (long time) spontaneous emission spectrum, which are now phase dependent. Inhibition of spontaneous emission and extreme spectral narrowing are shown as the relative phase is varied. Our results are interpreted using a dressed state analysis of the dynamics.

Journal of Modern Optics•May 1, 2000•27 citations

Inhibition of spontaneous emission noise in lasers without inversion

G. S. Agarwal

I demonstrate a very large degree of quenching of spontaneous emission noise in different laser systems that work on mechanisms other than the population inversion between the bare states of the atom. Such laser systems have much narrower linewidths. I give explicit results for phase diffusion for four different model systems.

Physical Review Letters•Aug 19, 1991•129 citations

Phase Control of Spontaneous Emission of a Three-Level Atom in Two Bichromatic Fields

李晓霞, 胡响明, 石文星 +3 more

我们使用二个双性人的相对阶段差别为在 A 的一个三水平的原子的自发的排放的协调控制的相等的频率差别的色彩的领域配置。象荧光腐烂的选择、全部的取消那样的效果被改变阶段差别简单地获得。荧光系列的阶段依赖被归因于四个不同保持的部件在一种关上的环配置导致转变的事实。

Chinese Physics Letters•Jan 1, 2006•0 citations
In this article we study the potential for coherently control spontaneous emission in a four-level scheme. Our control parameter is the relative phase of two laser fields having the same angular frequency. We investigate in detail the trapping conditions, the population dynamics and the behaviour of the (long time) spontaneous emission spectrum, which are now phase dependent. Inhibition of spontaneous emission and extreme spectral narrowing are shown as the relative phase is varied. Our results are interpreted using a dressed state analysis of the dynamics.