In the paper by Weber, Bylicki, and Miksch [Phys. Rev. A 30, 270 (1984)] the ``inversion effect'' of the Hanle and rf double-resonance signals in ${\mathrm{NO}}_{2}$ molecules is explained with the questionable assumption of a ``light-induced stability of the optically prepared state.'' We give an alternative explanation of the ``inversion effect'' which is based on the nonstationarity of molecular perturbation by a laser and which is consistent with the present knowledge of interaction of laser light with matter.In the paper by Weber, Bylicki, and Miksch [Phys. Rev. A 30, 270 (1984)] the ``inversion effect'' of the Hanle and rf double-resonance signals in ${\mathrm{NO}}_{2}$ molecules is explained with the questionable assumption of a ``light-induced stability of the optically prepared state.'' We give an alternative explanation of the ``inversion effect'' which is based on the nonstationarity of molecular perturbation by a laser and which is consistent with the present knowledge of interaction of laser light with matter.

Physical Review AMar 1, 19873 citations

Magnetic resonances verified in agreement with an assumed time-asymmetric evolution

H.G. Weber, G. Miksch

With use of a narrow-band laser, the free ${\mathrm{NO}}_{2}$ molecule is prepared in a well-defined excited state under conditions that correspond to an optical-frequency--radiofrequency double-resonance experiment. We observe a resonant increase or decrease (dependent on the divergence of the light beam) of the total fluorescence intensity when the radiofrequency field is in resonance with the Zeeman splitting in the ground or excited state of the laser-induced transition. These resonances differ significantly from well-known optical-rf double-resonance signals and laser saturation effects. The resonances are, however, well described with use of a model which assumes an irreversible evolution in the free ${\mathrm{NO}}_{2}$ molecule.With use of a narrow-band laser, the free ${\mathrm{NO}}_{2}$ molecule is prepared in a well-defined excited state under conditions that correspond to an optical-frequency--radiofrequency double-resonance experiment. We observe a resonant increase or decrease (dependent on the divergence of the light beam) of the total fluorescence intensity when the radiofrequency field is in resonance with the Zeeman splitting in the ground or excited state of the laser-induced transition. These resonances differ significantly from well-known optical-rf double-resonance signals and laser saturation effects. The resonances are, however, well described with use of a model which assumes an irreversible evolution in the free ${\mathrm{NO}}_{2}$ molecule.

Physical Review AMar 1, 198514 citations

Resonance Transformation of Light by Molecules with Two Overlapping Excitation Levels

Vitaly Morozov

OptSpAug 1, 19660 citations

In the paper by Weber, Bylicki, and Miksch [Phys. Rev. A 30, 270 (1984)] the ``inversion effect'' of the Hanle and rf double-resonance signals in

{\mathrm{NO}}_{2}

molecules is explained with the questionable assumption of a ``light-induced stability of the optically prepared state.'' We give an alternative explanation of the ``inversion effect'' which is based on the nonstationarity of molecular perturbation by a laser and which is consistent with the present knowledge of interaction of laser light with matter.

With use of a narrow-band laser, the free

{\mathrm{NO}}_{2}

molecule is prepared in a well-defined excited state under conditions that correspond to an optical-frequency--radiofrequency double-resonance experiment. We observe a resonant increase or decrease (dependent on the divergence of the light beam) of the total fluorescence intensity when the radiofrequency field is in resonance with the Zeeman splitting in the ground or excited state of the laser-induced transition. These resonances differ significantly from well-known optical-rf double-resonance signals and laser saturation effects. The resonances are, however, well described with use of a model which assumes an irreversible evolution in the free

{\mathrm{NO}}_{2}

molecule.