dc.contributor.author |
Mironov E.A. |
|
dc.contributor.author |
Palashov O.V. |
|
dc.contributor.author |
Naumov A.K. |
|
dc.contributor.author |
Aglyamov R.D. |
|
dc.contributor.author |
Semashko V.V. |
|
dc.date.accessioned |
2022-02-09T20:30:30Z |
|
dc.date.available |
2022-02-09T20:30:30Z |
|
dc.date.issued |
2021 |
|
dc.identifier.issn |
0003-6951 |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/168630 |
|
dc.description.abstract |
The characteristics of a magneto-optical material promising for the development of Faraday isolators for high-power lasers - the Na0.37Tb0.63F2.26 (NTF) solid solution crystal with a negative value of optical anisotropy parameter - were investigated. The value of the optical anisotropy parameter ζNTF = -0.26 ± 0.02 was refined in model experiments on samples with increased absorption, and the value of the thermo-optical constant Q characterizing thermally induced depolarization was measured to be QNTF = (3.44 ± 0.4)·10-6 K-1. The negative value of ζ indicates that the depolarization resulting from stress-induced birefringence in this material is strongly dependent on orientation and ensures the presence of a critical orientation [C], with the use of which the magnitude of thermally induced depolarization in the Faraday isolator may be significantly reduced. The [C] orientation is determined by the parameter ζ; therefore, its accurate measurement is of particular importance. The investigation of Faraday isolators based on NTF crystals cut in [001] and [C] orientations demonstrated a significant advantage of the critical orientation. According to the measurement result, with the use of crystals with normal absorption, it is possible to develop a traditional (single element) Faraday isolator operating at room temperature and ensuring the isolation ratio of about 30 dB at the laser radiation power of ∼7 kW. This makes the NTF crystal one of the most prospective magneto-active media. |
|
dc.relation.ispartofseries |
Applied Physics Letters |
|
dc.title |
Faraday isolator based on NTF crystal in critical orientation |
|
dc.type |
Article |
|
dc.relation.ispartofseries-issue |
7 |
|
dc.relation.ispartofseries-volume |
119 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.source.id |
SCOPUS00036951-2021-119-7-SID85113288940 |
|