Local-Field Effects in the Zero-Phonon Spectral Lines of Single Impurity Molecules in Solid Matrices at Low Temperatures

T.A. Anikushina; M.G. Gladush; A.A. Gorshelev; A.V. Naumov

doi:10.1051/epjconf/201510305001

EPJ

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Proceedings

Open Access

EPJ Web of Conferences 103, 05001 (2015)
https://doi.org/10.1051/epjconf/201510305001

Local-Field Effects in the Zero-Phonon Spectral Lines of Single Impurity Molecules in Solid Matrices at Low Temperatures

T.A. Anikushina¹^,2^a, M.G. Gladush², A.A. Gorshelev² and A.V. Naumov¹^,2

¹ Moscow Pedagogical State University, 29 Malaya Pirigivskaya Str. Moscow 119991, Russia
² Institute for Spectroscopy RAS, 5 Fizicheskaya Str., Troitsk, Moscow 142190, Russia

^a Corresponding author: anikushina@list.ru

Published online: 25 September 2015

Abstract

In this work, we study the relation between the widths of the zero-phonon lines (ZPL) of single impurity molecules (SM) in solid matrices with local effective values of the refractive index n. Since at ultralow temperatures the width of SM ZPL is determined mainly by the radiative lifetime T₁, while the local-field effects produce the function T₁(n), SM spectroscopy makes it possible to measure the distribution of n local values in solids. The approach proposed here for studying local fluctuations of n has been tested on the example of doped polymers and molecular crystals.

Key words: single-molecule / super-resolution / local-field / zero-phonon line / refractive index / fluctuations / polymer / molecular crystal

© Owned by the authors, published by EDP Sciences, 2015

This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.