Four-wave mixing theory for two-photon generation of excitons in cuprous oxide

Beloussov Igor; Ketterson John B.; Sun Yi

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BELOUSSOV, Igor, KETTERSON, John B., SUN, Yi. Four-wave mixing theory for two-photon generation of excitons in cuprous oxide. In: Solid State Communications, 2005, vol. 134, pp. 135-138. ISSN 0038-1098. DOI: https://doi.org/10.1016/j.ssc.2004.11.045

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Solid State Communications

Volumul 134 / 2005 / ISSN 0038-1098 /ISSNe 1879-2766

Four-wave mixing theory for two-photon generation of excitons in cuprous oxide

DOI:https://doi.org/10.1016/j.ssc.2004.11.045

Pag. 135-138

Beloussov Igor¹, Ketterson John B.², Sun Yi²

¹ Institute of Applied Physics, Academy of Sciences of Moldova,
² Northwestern University

Disponibil în IBN: 13 noiembrie 2023

Rezumat

The experimental situation in which excitons in Cu₂O are pumped directly into a state with wave vector k→=0→ by two counter-propagating laser pulses, and subsequently probed by a third, time-delayed, pulse has been theoretically investigated. It has been shown that additional electromagnetic waves are excited in the system. A specific configuration of two pump pulses and one probe pulse has been found to generate only one additional electromagnetic wave. The dependence of the time-integrated photon number in this wave on the delay time between pump and probe pulses for some values of the detuning has been investigated.

Cuvinte-cheie
D. Excitons, D. Optical properties, E. luminescence, E. Time-resolved optical spectroscopies

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