Open Access
Results in Physics, volume 32, pages 105120
Optical gain appearance in the CdSe/CdS nanoplatelets colloidal solution
Golinskaya Anastasia D
1
,
MANTSEVICH V. N.
1
,
Kozlova Maria V
1
,
Ezhova Kseniia V.
2
,
Saidzhonov B M
3
,
Dneprovskii Vladimir S
1
Publication type: Journal Article
Publication date: 2022-01-01
General Physics and Astronomy
Abstract
• Nanoplatelets concentration strongly affects the gain occurrence. • One-photon stationary excitation of excitons are discussed in details. • Nonlinear transmission changes of the colloidal nanoplatelets were analyzed. • Exciton states E 0 and E 1 correspond to the transitions from the same hole sub-band. • Exciton excitation occurs in X point of the two-dimensional Brillouin zone. The experimental investigations of the colloidal heterostructured CdSe/CdS nanoplatelets transient absorption in the regime of one-photon stationary excitation of excitons by high-intensity nanosecond laser pulses are presented. A strong dependence of exciton’s transitions behavior on nanoplatelets concentration in colloidal solution and pump intensities was studied for the first time. The revealed nonlinear transmission changes of the nanoplatelets solutions with different optical density were explained by the presence of phase space filling effect, energy exchange between exciton states, reabsorption processes and exciton–exciton interaction. The most vital result of the paper is the identification of conditions for the existence of the optical gain in colloidal solutions of nanoplatelets.
Citations by journals
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Nanomaterials
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Nanomaterials
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Laser and Photonics Reviews
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1 publication, 25%
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Citations by publishers
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Multidisciplinary Digital Publishing Institute (MDPI)
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Multidisciplinary Digital Publishing Institute (MDPI)
2 publications, 50%
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Wiley
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Wiley
1 publication, 25%
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1
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Smirnov A. M. et al. Optical gain appearance in the CdSe/CdS nanoplatelets colloidal solution // Results in Physics. 2022. Vol. 32. p. 105120.
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Smirnov A. M., Golinskaya A. D., MANTSEVICH V. N., Kozlova M. V., Ezhova K. V., Saidzhonov B. M., Vasiliev R. B., Dneprovskii V. S. Optical gain appearance in the CdSe/CdS nanoplatelets colloidal solution // Results in Physics. 2022. Vol. 32. p. 105120.
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TY - JOUR
DO - 10.1016/j.rinp.2021.105120
UR - https://doi.org/10.1016%2Fj.rinp.2021.105120
TI - Optical gain appearance in the CdSe/CdS nanoplatelets colloidal solution
T2 - Results in Physics
AU - Smirnov, Aleksandr M
AU - Golinskaya, Anastasia D
AU - MANTSEVICH, V. N.
AU - Kozlova, Maria V
AU - Ezhova, Kseniia V.
AU - Saidzhonov, B M
AU - Vasiliev, Roman B.
AU - Dneprovskii, Vladimir S
PY - 2022
DA - 2022/01/01 00:00:00
PB - Elsevier
SP - 105120
VL - 32
SN - 2211-3797
ER -
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@article{2022_Smirnov,
author = {Aleksandr M Smirnov and Anastasia D Golinskaya and V. N. MANTSEVICH and Maria V Kozlova and Kseniia V. Ezhova and B M Saidzhonov and Roman B. Vasiliev and Vladimir S Dneprovskii},
title = {Optical gain appearance in the CdSe/CdS nanoplatelets colloidal solution},
journal = {Results in Physics},
year = {2022},
volume = {32},
publisher = {Elsevier},
month = {jan},
url = {https://doi.org/10.1016%2Fj.rinp.2021.105120},
pages = {105120},
doi = {10.1016/j.rinp.2021.105120}
}