Nanophotonics

On interpretation of spectra of photochemically induced circular dichroism of semiconductor nanocrystals

F. M. Safin, V. G. Maslov

St. Petersburg National Research University of Information Technologies, Mechanics and Optics

Abstract: We propose an approach to the analysis and interpretation of spectra of photoinduced circular dichroism (PICD) of semiconductor nanocrystals, in particular, quantum dots, based on comparison of these spectra with the spectra of magnetic circular dichroism (MCD). We show that MCD and PICD spectra have similar features. The values of parameters similar to the well-known parameters A and B of the MCD spectra, which characterize the splitting and mixing of states, are determined from the PICD spectra.

Keywords: photoinduced circular dichroism, optical activity, chirality, quantum dots, magnetic circular dichroism, quantum nanocrystals.

Received: 03.02.2020
Revised: 03.02.2020
Accepted: 28.02.2020

DOI: 10.21883/OS.2020.06.49402.57-20

 English version: Optics and Spectroscopy, 2020, 128:6, 729–732

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