Heat accumulation and phase transition induction in a VO 2 thin film by a femtosecond pulse-periodic radiation

The kinetics of optical switching due to the insulator-metal phase transition in a VO thin film is studied experimentally at different laser pulse repetition frequencies (PRFs) in the NIR range and compared with temperature kinetics obtained through the thermal conductance calculations. Two switchin...

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Bibliographic Details
Published in:Optics letters 2024-01, Vol.49 (2), p.210
Main Authors: Wang, Zixin, Kislyakov, Ivan M, Cao, Xun, Dong, Ningning, Wang, Jun
Format: Article
Language:English
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Summary:The kinetics of optical switching due to the insulator-metal phase transition in a VO thin film is studied experimentally at different laser pulse repetition frequencies (PRFs) in the NIR range and compared with temperature kinetics obtained through the thermal conductance calculations. Two switching processes have been found with characteristic times
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.507192