On non-vanishing amplitude of Hanle electromagnetically induced absorption in Rb
| Autor: | Aleksandar J. Krmpot, Zoran D. Grujić, Dušan Arsenović, M. Mijailović, Bratimir Panić, Dejan Pantelić, Jelena Dimitrijević, B. M. Jelenković |
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| Rok vydání: | 2009 |
| Předmět: |
Physics
Quantum optics business.industry Laser 7. Clean energy 01 natural sciences Atomic and Molecular Physics and Optics law.invention 010309 optics symbols.namesake Amplitude Optics law 0103 physical sciences symbols Physics::Atomic Physics Laser detuning 010306 general physics Absorption (electromagnetic radiation) business Doppler effect Circular polarization Doppler broadening |
| Zdroj: | Optics express. 15(3) |
| ISSN: | 1094-4087 |
| Popis: | Amplitude and linewidts of the Hanle EIA, obtained from transmission of the laser locked to closed F(g) ? F(e) = F(g) +1 transitions in (85)Rb and(87)Rb, have maximum values at few mW/cm2. Amplitude of the EIA reaches steady value different from zero for higher laser intensities, even for laser intensities of 40 mW/cm(2). Theoretical model of EIA, for the same atomic system as in the experiment, show that the laser intensity, at which maximum of amplitudes and widths occur, depends on the laser detuning. For smaller laser detuning of a few tens of MHz, EIA has a maximum and then vanishes at higher laser intensities. For larger laser detuning of the order of hundreds MHz (but still in the range of Doppler broadening) amplitude of the EIA has very broad maximum and remains above zero for intensities above 40 mW/cm(2). Such theoretical results indicate that Hanle absorption peak remains in the experimental results, regardless of the laser intensities, due to Doppler effect. |
| Databáze: | OpenAIRE |
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