Non-stationary testing of avalanche-like behavior of up-conversion luminescence
| Autor: | M. V. Korolkov |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Photon
Materials science Physics::Instrumentation and Detectors Physics::Optics Statistical and Nonlinear Physics 01 natural sciences Atomic and Molecular Physics and Optics 010309 optics Nonlinear system Nonlinear Sciences::Adaptation and Self-Organizing Systems 0103 physical sciences Up conversion Atomic physics Luminescence Nonlinear coupling Intensity (heat transfer) |
| Zdroj: | Journal of the Optical Society of America B. 37:3239 |
| ISSN: | 1520-8540 0740-3224 |
| Popis: | Nonlinear coupling of pumping rates in pump channels can produce effects very similar to the photon avalanche in up-conversion luminescence in the absence of a true avalanche. Stationary luminescence intensity can depend on the pump intensity practically in the same way. Here we show that time-dynamics for true avalanche and for avalanche-like processes are drastically different. Based on measuring the development times of stationary luminescence for several pump intensities, a simple test is proposed to reveal the nonlinear process underlying the observed avalanche-like effect. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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