Laser-induced birefringence in a wavelength-mismatched cascade system of inhomogeneously broadened Yb atoms
| Autor: | Tai Hyun Yoon, Chang Yong Park, Sung Jong Park |
|---|---|
| Rok vydání: | 2004 |
| Předmět: |
Density matrix
Physics Photon Absorption spectroscopy Atomic Physics (physics.atom-ph) FOS: Physical sciences Polarization (waves) Atomic and Molecular Physics and Optics Physics - Atomic Physics symbols.namesake Nuclear magnetic resonance Stark effect symbols Stokes parameters Physics::Atomic Physics Atomic physics Spectroscopy Circular polarization Physics - Optics Optics (physics.optics) |
| Zdroj: | Physical Review A. 70 |
| ISSN: | 1094-1622 1050-2947 |
| Popis: | We report the observation of laser induced birefringence (LIB) in a wavelength-mismatched cascade system (J=0 \leftrightarrow J=1 \leftrightarrow J=0 transitions) of inhomogeneously broadened ytterbium atoms with strong pump and probe fields. We investigate the transmission spectrum of two circular polarization (\sigma_p^+ and \sigma_p^-) components of strong probe field at fixed frequency, depending on the detuning of circularly polarized (\sigma_c^-) coupling field from two-photon resonance. We find that \sigma_p^+ (\sigma_p^-) polarized component exhibits a narrow electromagnetically induced absorption (transparency) spectrum. Numerical solutions of density matrix equations show qualitative agreement with experimental results. A Doppler-free dispersive LIB signal is obtained by detecting the Stokes parameter of the probe field, enabling us to stabilize the frequency of coupling laser without frequency modulation. Comment: 5 Pages, 3 figures, PDF file. Phys. Rev. A Rapid Commun. (accepted) |
| Databáze: | OpenAIRE |
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