Stimulated Globular Scattering of Laser Radiation in Photonic Crystals: Temperature Dependences
V. S. Gorelik (1), A. D. Kudryavtseva (1), N. V. Tcherniega (1), A. I., Vodchits (2) ((1) P. N. Lebedev Physical Institute, RAS, Moscow, Russia, (2), B. I. Stepanov Institute of Physics, National Academy of Sciences of Belarus,, Minsk, Belarus)
TL;DR
This study investigates how temperature affects stimulated globular scattering in photonic crystals, revealing increased scattering energy and higher order components at lower temperatures, with comparisons to Raman scattering in calcite crystals.
Contribution
It provides new insights into temperature-dependent SGS characteristics in photonic crystals and compares these effects with Raman scattering in calcite.
Findings
Lower temperatures increase SGS energy.
Higher order scattering components become more prominent at low temperatures.
Temperature effects are similar to those observed in calcite Raman scattering.
Abstract
Stimulated globular scattering (SGS) characteristics (frequency shifts, threshold, conversion efficiency) have been studied in photonic crystals (synthetic opal matrices and opal nanocomposites) at different temperatures. Results have been compared with stimulated Raman scattering investigations in calcite single crystals. In both cases temperature lowering from +20 C to -196 C resulted in the stimulated scattering energy increase and its redistribution to the higher order components.
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Taxonomy
TopicsPhotonic Crystals and Applications · Random lasers and scattering media · Plant and animal studies