Simulation of optical cooling of perovskite nanoparticle doped by ytterbium ions
Vitaliy A. Danilin, Anna V. Romanova, Dmitrii P. Shcherbinin, Andrei V. Ivanov, ITMO University, St. Petersburg, Russia
Abstract
Over the past decade, perovskite materials have been widely used. Owing to the unique optical properties of these materials, the creation of nanolasers is a particularly promising direction for their use. Like any device that generates radiation, nanolasers based on perovskite materials are heated during operation under the action of pump radiation. Thus, to obtain generation with stable radiation characteristics, nanolasers require external cooling. In this work, we numerically simulate optical cooling of a perovskite nanoparticle with ytterbium ions localized in optical tweezers. The main mechanism of optical cooling is anti-Stokes fluorescence on ytterbium ions. Cooling is implemented by selecting the parameters of optical radiation, intensity and wavelength, acting on the material. In this work, the time dependences of the nanoparticle temperature for its various sizes are obtained. It is shown that particles with a size of several tens of nanometers can be optically cooled by several tens of kelvins. The results obtained indicate the possibility of obtaining thermal stabilization of the operation of perovskite nanolasers using optical cooling.
Speaker
Vitaliy A. Danilin
ITMO University
Russia
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