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Theory for Quantum Interference Signal from an Inhomogeneously Broadened Two-Level System Excited by an Optically Phase-Controlled Laser-Pulse Pair

Shin‐ichiro Sato

A useful expression for the quantum interference (QI) signal was derived for an inhomogeneously broadened two-level system when it was excited by an optically phase-controlled laser-pulse pair. It was shown that the QI signal oscillates as a function of a relative optical phase, with the reduced angular frequency given by the relation ωa = (Γ(2)ω0 + γg(2)Ω)/(γg(2) + Γ(2)), where γg and Γ are standard deviations of the system's absorption and the laser spectra both having a Gaussian line shape, respectively, and ω0 and Ω are the center angular frequency of the system absorption and the carrier angular frequency of the laser, respectively.A useful expression for the quantum interference (QI) signal was derived for an inhomogeneously broadened two-level system when it was excited by an optically phase-controlled laser-pulse pair. It was shown that the QI signal oscillates as a function of a relative optical phase, with the reduced angular frequency given by the relation ωa = (Γ(2)ω0 + γg(2)Ω)/(γg(2) + Γ(2)), where γg and Γ are standard deviations of the system's absorption and the laser spectra both having a Gaussian line shape, respectively, and ω0 and Ω are the center angular frequency of the system absorption and the carrier angular frequency of the laser, respectively.

Journal of Chemical Theory and ComputationApr 18, 20079 citations

Lorentz-Lorenz shift in an inhomogeneously broadened medium

Jingzhong Guo, Alan Gallagher, J. Cooper

Optics CommunicationsNov 1, 199612 citations

Quantum interference effects in linear and nonlinear optics

Holger Schmidt

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Coherent control of thermalized luminescence in semiconductor quantum dots

Федоров Анатолий Валентинович, Alexander V. Baranov, Yasuaki Masumoto

A theoretical study of the time-integrated signal of thermalized luminescence excited by a pair of phase-locked light pulses shows that the idea of coherent control should be efficient for measuring the total dephasing rates of high-energy excitonic transitions. This approach can be used for studying both the homogeneously and inhomogeneously broadened systems, which is highly important in studies of the semiconductor quantum dots. It is found that the method of coherent control makes it possible not only to obtain information about the relaxation constants but also to make conclusions about the statistical properties of frequency distributions of the excitonic transitions responsible for broadening the optical spectra.A theoretical study of the time-integrated signal of thermalized luminescence excited by a pair of phase-locked light pulses shows that the idea of coherent control should be efficient for measuring the total dephasing rates of high-energy excitonic transitions. This approach can be used for studying both the homogeneously and inhomogeneously broadened systems, which is highly important in studies of the semiconductor quantum dots. It is found that the method of coherent control makes it possible not only to obtain information about the relaxation constants but also to make conclusions about the statistical properties of frequency distributions of the excitonic transitions responsible for broadening the optical spectra.

Optics and SpectroscopyOct 1, 20027 citations

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Hermann Haken

The European Physical Journal ASep 1, 1966179 citations

Storage and time reversal of light pulses using photon echoes

N. W. Carlson, William Randall Babbitt, THOMAS W. MOSSBERG +2 more

We have studied the temporal profile of photon-echo signals generated by combined gated cw and pulsed dye-laser excitation of the inhomogeneously broadened, 555.6-nm absorption line of (174)Yb vapor. We find that the echo profile is, after time reversal, essentially identical with that of the first excitation pulse. We give a new analysis of this effect. Since time-reversed pulse reproduction should also occur in inhomogeneously broadened solid samples, and since we observe time-reversed reproduced pulses up to 4% as intense as the input pulse, this effect may have important applications in optical signal-processing systems.We have studied the temporal profile of photon-echo signals generated by combined gated cw and pulsed dye-laser excitation of the inhomogeneously broadened, 555.6-nm absorption line of (174)Yb vapor. We find that the echo profile is, after time reversal, essentially identical with that of the first excitation pulse. We give a new analysis of this effect. Since time-reversed pulse reproduction should also occur in inhomogeneously broadened solid samples, and since we observe time-reversed reproduced pulses up to 4% as intense as the input pulse, this effect may have important applications in optical signal-processing systems.

Optics LettersSep 1, 1983102 citations

Quantum Interference Signal from an Inhomogeneously Broadened System Excited by an Optically Phase-Controlled Laser-Pulse Pair

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Quantum Interference Signal from an Inhomogeneously Broadened System Excited by an Optically Phase-Controlled Laser-Pulse Pair

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