UV-Visible Faraday Rotators Based on Rare-Earth Fluoride Single Crystals: LiREF4 (RE=Tb, Dy, Ho, Er and Yb), PrF3 and CeF3

2013 ◽  
Vol 582 ◽  
pp. 194-197
Author(s):  
Valentyn Vasyliev ◽  
Encarnacion G. Villora ◽  
Masaru Nakamura ◽  
Yoshiyuki Sugahara ◽  
Kiyoshi Shimamura

High optical quality LiREF4(RE = Tb3+, Dy3+, Ho3+, Er3+and Yb3+), PrF3and CeF3single crystals have been grown by the Czochralski technique. Their magneto-optical properties have been measured and analyzed in detail in the ultraviolet-visible wavelength region, and their figures of merit as Faraday rotators have been determined. CeF3presents superior properties above 300 nm, showing a figure of merit higher than that of the reference material, terbium-gallium-garnet, which is nowadays used in the visible-near infrared. PrF3is the best rotator for the 220-300 nm range. Towards shorter wavelength and in the vacuum ultraviolet, it is shown that the LiREF4crystals are unique rotators.

1994 ◽  
Author(s):  
Dmitry Y. Sugak ◽  
Andrej O. Matkovskii ◽  
E. A. Korobenko ◽  
Anatolij I. Mikhalevych ◽  
Ivan M. Solskii ◽  
...  

2020 ◽  
Vol 221 ◽  
pp. 117079 ◽  
Author(s):  
Marco Cinquino ◽  
Laura Polimeno ◽  
Giovanni Lerario ◽  
Milena De Giorgi ◽  
Anna Moliterni ◽  
...  

2004 ◽  
Vol 99-100 ◽  
pp. 55-64 ◽  
Author(s):  
D.C. Meisel ◽  
M. Deubel ◽  
M. Hermatschweiler ◽  
K. Busch ◽  
W. Koch ◽  
...  

We review our work on two complementary and compatible techniques, namely direct laser writing and holographic lithography which are suitable for fabricating three-dimensional Photonic Crystal templates for the visible and near-infrared. The structures are characterized by electron micrographs and by optical spectroscopy, revealing their high optical quality.


1999 ◽  
Vol 607 ◽  
Author(s):  
B. H. Bairamov ◽  
N. Fernelius ◽  
G. Irmer ◽  
J. Monecke ◽  
I. K. Polushina ◽  
...  

AbstractInelastic light scattering by optical phonons and the temperature dependent electrical conductivity, Hall constant and photosensitivity were studied in oriented CdGeAs2 crystals grown by ultra-low gradient freeze technique from near-stoichiometric melts. Observation of the clear polarization dependence of the inelastic light scattering spectra by optical phonons combined with the absence of any dependence of the intensity and frequency shift of the observed lines with mapping measurements in 300 μm steps indicated the high optical quality and homogeneity of these single crystals. It is shown that surface-barrier structures using these single crystals may be used as wide-band detectors for natural light, as well as selective photoanalyzers for linearly polarized radiation.


CrystEngComm ◽  
2022 ◽  
Author(s):  
Inga Vasilyeva ◽  
Ruslan Nikolaev

Advances and limitations in the field of growing large, a high optical quality single crystals of AgGaS2 (AGS), AgGaGeS4 (AGGS), ZnGeP2 (ZGP), LiInS2 (LIS), LiGaS2 (LGS), LiInSe2 (LISe), LiGaSe2 (LGSe)...


Author(s):  
Софья Михайловна Маслобоева

Проведен анализ известных методов синтеза шихты ниобата лития, легированной бором, которая используется при выращивании монокристаллов высокого оптического качества методом Чохральского. Установлено, что способ гомогенного легирования (шихта получается из прекурсора NbO :B и LiCO) по сравнению с твердофазным (шихта получается из смеси LiCO: NbO : HBO ) позволяет выращивать кристаллы LiNbO: B с более однородным распределением в них примеси бора, а также в объеме расплава, при этом упрощаются технологические режимы, устанавливаемые при росте кристаллов. В работе впервые рассмотрен жидкофазный метод синтеза шихты, исключающий стадию прокалки гомогенизированной смеси пентаоксида ниобия и карбоната лития. Результаты имеют важное значение при выборе технологии выращивания легированных бором монокристаллов ниобата лития для конкретных областей техники. Known methods of a boron doped lithium niobate charge synthesis were analyzed. Such a charge is applied for the growth by Czochralski of single crystals with high optical quality. Homogeneous doping (the charge is obtained from precursor NbO:B and LiCO) was compared with solid phase doping (the charge is obtained from the mixture LiCO: NbO: HBO). Homogeneous doping was determined to help produce LiNbO: B crystals with a more uniform distribution of a boron dopant, boron distributes more uniform in the melt volume; technological regimes established during crystal growth become easier. For the first time the paper considers liquid-phase charge synthesis method; the method excludes the stage of annealing of homogenized mixture of niobium pentoxide and lithium carbonate. Results are crucial for the choice of technology at growing of boron doped lithium niobate crystals for exact areas of technics.


2012 ◽  
Vol 20 (13) ◽  
pp. 14460 ◽  
Author(s):  
Valentyn Vasyliev ◽  
Encarnacíon G. Villora ◽  
Masaru Nakamura ◽  
Yoshiyuki Sugahara ◽  
Kiyoshi Shimamura

2017 ◽  
Vol 457 ◽  
pp. 275-281 ◽  
Author(s):  
Eugeni Gavrishuk ◽  
Vladimir Ikonnikov ◽  
Tatyana Kotereva ◽  
Vladimir Pimenov ◽  
Dmitry Savin ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document