Saturation and self-saturation effects in the field of intense laser waves: The J = 1 − J = 1 transition

Autor: S. G. Rautian, A. A. Chernenko, E. G. Saprykin
Rok vydání: 2008
Předmět:
Zdroj: Optics and Spectroscopy. 104:567-576
ISSN: 1562-6911
0030-400X
DOI: 10.1134/s0030400x08040140
Popis: The shape of the resonance of a saturated absorption is calculated at an arbitrary intensity of a probe field. It is revealed that, in the case of orthogonal polarizations of strong and probe fields, an increase in the intensity of the probe field can invert the shape of the nonlinear resonance of clearing of the medium, changing it to the resonance of absorption. The saturation of optical transitions by intrinsic spontaneous radiation increases the contrast of the inverted resonance of saturation and narrows its width. In the case of parallel polarizations of the optical fields, an absorption peak can arise in the shape of the nonlinear resonance upon splitting of the lower state.
Databáze: OpenAIRE