najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2026-17-2-200-203najo-1761Research ArticlePHYSICSФИЗИКАLaser correlation spectroscopy of nanodispersed solutions in the region of transition to multiple light scatteringЛазерная корреляционная спектроскопия нанодисперсных растворов в области перехода к многократному рассеянию светаhttps://orcid.org/0000-0002-6707-6216ПлешаковИ. В.PleshakovI. V.

Ivan V. Pleshakov 

Saint Petersburg 

ivanple@yandex.ruСоловьевА. В.SolovievA. V.

Aleksey V. Soloviev 

alexei.v.soloviev@gmail.comhttps://orcid.org/0009-0000-5368-6788АлексеевА. А.AlekseevA. A.

Arseniy A. Alekseev  

Saint Petersburg 

arseniy.alekseev98@gmail.comhttps://orcid.org/0009-0004-2565-8834ФофановЯ. А.FofanovY. A.

Yakov A. Fofanov 

Institute for Analytical Instrumentation of RAS 

yakinvest@yandex.ruIoffe InstituteRussian FederationIndependent researcherRussian FederationPeter the Great Saint Petersburg Polytechnic UniversityRussian FederationInstitute for Analytical Instrumentation of RASRussian Federation202630042026172200203Copyright © Pleshakov I.V., Soloviev A.V., Alekseev A.A., Fofanov Y.A., 20262026Плешаков И.В., Соловьев А.В., Алексеев А.А., Фофанов Я.А.Pleshakov I.V., Soloviev A.V., Alekseev A.A., Fofanov Y.A.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1761

The work considers the application of laser correlation spectroscopy to the investigation of dispersed systems for such a case, which can be regarded as a transitional to the multiple scattering regime. It is shown that even a slight violation of the condition of single scattering by the increasing of concentration of scattering centers can affect the result of particle size measurements. It should be taken into account when studying colloids.

В работе рассматривается применение лазерной корреляционной спектроскопии к исследованию дисперсных систем для такого случая, который можно рассматривать как переходный к режиму многократного рассеяния. Показано, что даже незначительное нарушение условия однократного рассеяния за счет увеличения концентрации рассеивающих центров может привести к эффекту, который изменит результат измерения размера частиц. Это следует учитывать при изучении коллоидов.

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The authors declare that there are no conflicts of interest present.