Stimulated Emission of Active Media in the Red Spectral Range


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Abstract

Spectral, luminescent, and lasing characteristics of chromene dyes and their julolidine analogs emitting in the red spectral range are investigated experimentally and theoretically. It is shown that the cause for a low lasing efficiency of oxochromene compared with iminochromene is a high intersystem crossing to the T1 state and the presence of the induced T1Tn absorption in the region of the luminescence band.

About the authors

T. N. Kopylova

V. D. Kuznetsov Siberian Physical-Technical Institute at National Research Tomsk State University

Author for correspondence.
Email: kopylova@phys.tsu.ru
Russian Federation, Tomsk

R. M. Gadirov

V. D. Kuznetsov Siberian Physical-Technical Institute at National Research Tomsk State University

Email: kopylova@phys.tsu.ru
Russian Federation, Tomsk

S. Yu. Nikonov

V. D. Kuznetsov Siberian Physical-Technical Institute at National Research Tomsk State University

Email: kopylova@phys.tsu.ru
Russian Federation, Tomsk

R. R. Valiev

V. D. Kuznetsov Siberian Physical-Technical Institute at National Research Tomsk State University; National Research Tomsk Polytechnic University

Email: kopylova@phys.tsu.ru
Russian Federation, Tomsk; Tomsk

E. N. Tel’minov

V. D. Kuznetsov Siberian Physical-Technical Institute at National Research Tomsk State University

Email: kopylova@phys.tsu.ru
Russian Federation, Tomsk

E. N. Nikonova

V. D. Kuznetsov Siberian Physical-Technical Institute at National Research Tomsk State University

Email: kopylova@phys.tsu.ru
Russian Federation, Tomsk

T. A. Solodova

V. D. Kuznetsov Siberian Physical-Technical Institute at National Research Tomsk State University

Email: kopylova@phys.tsu.ru
Russian Federation, Tomsk

V. I. Alekseeva

State Scientific Center NIOPIK

Email: kopylova@phys.tsu.ru
Russian Federation, Moscow

L. E. Marinina

State Scientific Center NIOPIK

Email: kopylova@phys.tsu.ru
Russian Federation, Moscow

L. P. Savvina

State Scientific Center NIOPIK

Email: kopylova@phys.tsu.ru
Russian Federation, Moscow

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