Nonresonant echo spectroscopy of inhomogeneously broadened two-level systems


Effects which arise in inhomogeneously broadened systems upon nonresonant excitation are examined theoretically. The effect of such excitation on the signals representing a decaying free polarization and a two-pulse echo is discussed. The onset of echo signals generated in two-pulse retarded nutation during the application of a field is studied. The response can acquire a multicomponent structure. This structure is manifested in the appearance of a single-pulse echo, eight satellites in the two-pulse echo, and four nutation echo signals in the retarded two-pulse nutation. An experimental study of these effects is reported. The possibility of using them to determine relaxation times is analyzed.

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Additional information

Institute of Solid-State and Semiconductor Physics, Academy of Sciences of Belarus. Scientific-Research Institute of Problems of Semiconductor Physics, Belarus State University. Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 7, pp. 59–71, July, 1993.

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Kuz'min, V.S., Fedoruk, G.G. Nonresonant echo spectroscopy of inhomogeneously broadened two-level systems. Russ Phys J 36, 654–664 (1993).

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  • Spectroscopy
  • Experimental Study
  • Relaxation Time
  • Free Polarization
  • Nonresonant Excitation