Enhancement of electromagnetically induced absorption with elliptically polarized light--laser intensity dependent coherence effect

Using the (2)S(1/2)F(g) = 2 --> (2)P(3/2)F(e) = 3 transition in (87)Rb vapor at room temperature, we study effect of the laser light polarization on the electromagnetically induced absorption (EIA). This work extends the recent study of the behavior of the EIA as a function of the laser elliptici...

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Bibliographic Details
Published in:Optics express 2008-01, Vol.16 (2), p.1343-1353
Main Authors: Dimitrijevic, J., Grujic, Z., Mijailovic, M., Arsenovic, D., Panic, B. M., Jelenkovic, B.
Format: Article
Language:English
Subjects:
Computer Simulation
Electromagnetic Fields
Lasers
Light
Models, Theoretical
Refractometry - methods
Tomography, Optical Coherence - methods
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Summary:Using the (2)S(1/2)F(g) = 2 --> (2)P(3/2)F(e) = 3 transition in (87)Rb vapor at room temperature, we study effect of the laser light polarization on the electromagnetically induced absorption (EIA). This work extends the recent study of the behavior of the EIA as a function of the laser ellipticity (Brazhnikov et. al., JETP Lett. 83, 64, 2006). We have shown that such behavior strongly depends on the laser power. For the low laser power EIA amplitude has maximum for linearly polarized light, while for high laser power elliptically polarized light of ellipticity 15-20 degrees generates maximum of the EIA amplitude. EIA width varies slowly with the laser ellipticity at lower laser power, and much stronger at higher laser power. Through our theoretical model we attributed observed results to combined effect of the laser ellipticity and power on the population of ground state Zeeman sublevels.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.16.001343