IR spectroscopic determination of the refractive index of Ag1-xTlxBr1-0.54xI0.54x (0 <= x <= 0.05) crystals / Korsakov Alexandr,Salimgareev Dmitrii,Lvov Alexandr,Zhukova Liya // OPTICS AND LASER TECHNOLOGY. - 2017. - V. 93, l. . - P. 18-23.

ISSN/EISSN:

0030-3992 / 1879-2545

Type:

Article

Abstract:

In this paper we examined materials relevant for manufacturing various near- and mid-infrared fiber optical elements: AgBr and - presumably for the first time - AgBr - (TlBr0.46I0.54) up to 5\% of TlBr0.46I0.54, produced by hot embossing. Both real and imaginary parts of refractive indices were determined within the wavelength of 3.0-14.0 mu m for samples of these materials. An increase of the substituent in AgBr caused a monotonous rise of the refractive index, while for every certain composition, a shift towards longer wavelengths led to its decrease. This dependence was depicted on dispersion curves, which clearly demonstrate that optical fibers, drawn from AgBr - (TlBr0.46I0.54) crystals, can be used within the wide mid-infrared range, since the dispersion coefficient here is minimal and constant. To determine the refractive index at the absorption edge (from 0.465 to 0.484 mu m), we scrutinized eleven calculation models, with preferable Moss relation. (C) 2017 Elsevier Ltd. All rights reserved.

Author keywords:

Refractive indices; Silver and thallium halides; Solid solution crystals ENERGY-GAP; OPTICAL-PROPERTIES; SEMICONDUCTORS; DISPERSION; MODEL

DOI:

10.1016/j.optlastec.2017.01.03

Web of Science ID:

ISI:000400039200004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	AUG 1
Publisher	ELSEVIER SCI LTD
Address	THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND
Language	English
EISSN	1879-2545
Keywords-Plus	ENERGY-GAP; OPTICAL-PROPERTIES; SEMICONDUCTORS; DISPERSION; MODEL
Research-Areas	Optics; Physics
Web-of-Science-Categories	Optics; Physics, Applied
Author-Email	l.v.zhukova@urfu.ru
Funding-Acknowledgement	Government of the Russian Federation {[}02.A03.21.0006]
Funding-Text	The research was supported by Act No. 211 of the Government of the Russian Federation, contract no. 02.A03.21.0006. The authors wish to thank D.S. Vrublevsky and M.S. Korsakov (the employees of Innovation and Implementation Center ``Centre for Infrared Fiber Technologies{''} at Institute of Chemistry and Technology, UrFU) for their help in carrying out the experiments and writing this paper.
Number-of-Cited-References	28
Usage-Count-Last-180-days	8
Usage-Count-Since-2013	8
Journal-ISO	Opt. Laser Technol.
Doc-Delivery-Number	ET1OR