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  • 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 2019),
  • paper eg_p_21

Time Resolved Four-Wave Mixing in Nanocomposites

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Abstract

We elaborate methods of femtosecond time resolved spectroscopy of nanocomposites. Features of photon echo (PE) and time resolved four-wave mixing (TRFWM) signals in nanocomposites consisted of semiconductor quantum dots (QD) incorporated into nonlinear dielectric matrix are studied. In particular, impacts of value and angular distribution of permanent dipole moments (PDM) as well as their spatial dispersion on two pulse responses are under investigation. As is known, large values of permanent dipole moments are inherent to many semiconductor QDs, including ZnO QDs. Moreover, the presence of giant dipole moment in cellulose nanocrystals what reaches 4400400 Debye has been demonstrated [1].

© 2019 IEEE

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