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Optics and Spectroscopy

Remarks on Negative Absorption

Sergey G. Rautian, Igor I Sobel'man

Published Jan 1, 1961• 6 citations
OpenAlex

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On negative dispersion without absorption in bichromatically driven two-level systems

Carsten Szymanowski, Andreas Wicht, K. Danzmann

The possibility of obtaining strong negative dispersion without absorption in the central resonance structure of the spectrum of a bichromatically driven two-level system is investigated. A nonlinear analysis is performed using the technique of continued fractions with respect to the dressedstate basis of a strong pumping laser. We discuss the transition between the two regimes of the monochromatic driving case with a weak probing laser and of nearly equally strong lasers in terms of the contributions from coherences and populations of these dressed states. In contrast with the strong dependence of the Rabi side bands on probe field intensity, we find a remarkable stability of the negative dispersion in the central resonance structure.

Journal of Modern Optics•Jul 1, 1997•14 citations

Reply to Marchildon: absorption and non-unitarity remain well-defined in the Relativistic Transactional Interpretation

Ruth E. Kastner

I rebut some erroneous statements and attempt to clear up some misunderstandings in a recent set of critical remarks by Marchildon regarding the Relativistic Transactional Interpretation (RTI), showing that his negative conclusions regarding the transactional model are ill-founded.

arXiv:1712.09697•Dec 27, 2017•0 citations
The possibility of obtaining strong negative dispersion without absorption in the central resonance structure of the spectrum of a bichromatically driven two-level system is investigated. A nonlinear analysis is performed using the technique of continued fractions with respect to the dressedstate basis of a strong pumping laser. We discuss the transition between the two regimes of the monochromatic driving case with a weak probing laser and of nearly equally strong lasers in terms of the contributions from coherences and populations of these dressed states. In contrast with the strong dependence of the Rabi side bands on probe field intensity, we find a remarkable stability of the negative dispersion in the central resonance structure.