| Issue |
EPJ Web Conf.
Volume 161, 2017
XI International Symposium on Photon Echo and Coherent Spectroscopy (PECS-2017)
|
|
|---|---|---|
| Article Number | 01003 | |
| Number of page(s) | 2 | |
| Section | Plenary lectures and invited talks | |
| DOI | https://doi.org/10.1051/epjconf/201716101003 | |
| Published online | 31 October 2017 | |
https://doi.org/10.1051/epjconf/201716101003
On the criteria for strong and weak polarization responses of ordered objects and systems
1
Institute for Analytical Instrumentation RAS, 190103, St. Petersburg, Russia
2
Ioffe Physical Technical Institute RAS, 194021, St. Petersburg, Russia
3
Peter the Great St. Petersburg Polytechnic University, 195251, St. Petersburg, Russia
4
S. I. Vavilov State Optical Institute, 199034, St. Petersburg, Russia
5
St. Petersburg State Technological Institute, 190013, St. Petersburg, Russia
* e-mail: yakinvest@yandex.ru
Published online: 31 October 2017
The fundamental system of criteria for strong and weak polarization responses of ordered objects and systems is considered. It is shown that the weak responses have important properties of linearity (proportionality) and additivity. As an example, the responses of magnetically ordered materials, optical crystals and ensembles of magnetic nanoparticles are considered. When scanning laser probing of the modified leucosapphire crystals, oscillations of weak polarization responses in laser radiation scattered on texture of crystals are recorded. Investigations of magnetic fluids polarization responses have shown their high sensitivity to introduction of coagulating impurities and to processes of agglomeration of magnetic nanoparticles.
© The Authors, published by EDP Sciences, 2017
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