Quantum Interference in Probe Absorption: Narrow Resonances, Transparency, and Gain without Population Inversion

1997 ◽  
Vol 78 (5) ◽  
pp. 832-835 ◽  
Author(s):  
Peng Zhou ◽  
S. Swain
Keyword(s):  
Quantum Interference ◽  
Population Inversion ◽  
Probe Absorption

FIELD-INDUCED QUANTUM INTERFERENCE IN SEMICONDUCTOR QUANTUM WELLS FOR LASING WITHOUT POPULATION INVERSION AND ELECTROMAGNETICALLY INDUCED TRANSPARENCY

1995 ◽  
Vol 04 (02) ◽  
pp. 261-282 ◽  
Author(s):  
Y. ZHAO ◽  
D. HUANG ◽  
C. WU
Keyword(s):  
Quantum Wells ◽  
Quantum Interference ◽  
Population Inversion ◽  
Electromagnetically Induced Transparency ◽  
Random Phase ◽  
Nonlinear Susceptibility ◽  
Double Quantum ◽  
Single Quantum Well ◽  
Semiconductor Quantum Wells ◽  
Induced Transparency

This paper presents the current results of field-induced quantum interference in semiconductor quantum wells. Three-level systems with two conduction subbands in single and double quantum wells coupled by a resonant field are studied. We investigate effects of the Coulomb and field-induced electronic renormalizations of the energy subbands and steady eigenstates of electrons. The random-phase and ladder approximations have been used to calculate the linear interband and intersubband optical absorptions and refractive indices. The effect of collective dipole moment on the nonlinear susceptibility has been incorporated into the study by using a local-field approach. Lasing without population inversion, electromagnetically induced transparency, and enhanced nonlinearity with reduced absorption inside the intersubband-coupled single quantum well and dc-field coupled double quantum wells are found.

Experimental Demonstration of Laser Oscillation without Population Inversion via Quantum Interference in Rb

1995 ◽  
Vol 75 (8) ◽  
pp. 1499-1502 ◽  
Author(s):  
A. S. Zibrov ◽  
M. D. Lukin ◽  
D. E. Nikonov ◽  
L. Hollberg ◽  
M. O. Scully ◽  
...  
Keyword(s):  
Quantum Interference ◽  
Population Inversion ◽  
Laser Oscillation ◽  
Experimental Demonstration

Population Inversion of a V-type Three-Level Atom due to the Effect of Cavity-Induced Quantum Interference

2000 ◽  
Vol 18 (1) ◽  
pp. 48-50 ◽  
Author(s):  
Li Gao-Xiang ◽  
Peng Jin-Sheng ◽  
Wu Shao-Ping ◽  
Huang Guang-Ming
Keyword(s):  
Quantum Interference ◽  
Population Inversion ◽  
Level Atom

Manifestation of Quantum Interference in Lasing Without Inversion

1999 ◽  
Vol 54 (1) ◽  
pp. 33-38
Author(s):  
Hwang Lee ◽  
Marian O. Scully
Keyword(s):  
Quantum Interference ◽  
Population Inversion ◽  
Coherent Radiation ◽  
Stimulated Emission ◽  
The Other ◽  
Quantum Mechanical ◽  
Physical Mechanisms ◽  
Light Amplification ◽  
Lasing Without Inversion ◽  
Similarities And Differences

Abstract In terms of quantum interference we demonstrate the physical mechanisms which lead to light amplification without population inversion. The similarities and differences between the two model schemes, namely, A and V-type, are emphasized. A coherent radiation field, on one hand, which drives one of the lasing levels, yields the quantum mechanical two paths via Autler-Townes splittings. On the other hand, the spontaneous emission in this driving transition plays a key role in the asymmetries between the absorption and the stimulated emission in the lasing transition.

Quantum interference in a Λ system with a close lying excited level: probe absorption versus amplification

2018 ◽  
Vol 65 (17) ◽  
pp. 1983-1993
Author(s):  
Niharika Singh ◽  
R. D’Souza ◽  
Q. V. Lawande ◽  
B. N. Jagatap
Keyword(s):  
Quantum Interference ◽  
Excited Level ◽  
Probe Absorption
Sign in / Sign up

Export Citation Format

Share Document