Broadband and adiabatic inversion of a two-level system by phase-modulated pulses

J. Baum, R. Tycko, and A. Pines
Phys. Rev. A 32, 3435 – Published 1 December 1985
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Abstract

We describe a class of continuously phase-modulated radiation pulses that result in coherent population inversion on resonance as well as over a large range of transition frequencies and radiation field strengths. This is a population-inversion analogy to self-induced transparency. Simulations of the inversion properties of the modulated inversion pulse (MIP) are presented. It is shown that the inversion behavior can be explained by treating the MIP as a highly efficient adiabatic sweep. Criteria for establishing adiabaticity are discussed in detail. Finally, a method is presented for generating a sequence of phase-shifted radio-frequency pulses, from the continuously modulated pulse, which can be implemented on modern NMR and coherent optical spectrometers; experimental confirmation is given.

  • Received 8 August 1985

DOI:https://doi.org/10.1103/PhysRevA.32.3435

©1985 American Physical Society

Authors & Affiliations

J. Baum, R. Tycko, and A. Pines

  • Department of Chemistry, University of California, Berkeley, California 94720 and Materials and Molecular Research Division, Lawrence Berkeley Laboratory, Berkeley, California 94720

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Vol. 32, Iss. 6 — December 1985

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