Optical fluoride nanoceramic

被引：7

作者：

Dukel'skii, K. V. ^{[1
]}

Mironov, I. A. ^{[1
]}

Demidenko, V. A. ^{[1
]}

Smirnov, A. N. ^{[1
]}

Fedorov, P. P. ^{[2
]}

Osiko, V. V. ^{[2
]}

Basiev, T. T. ^{[2
]}

Orlovskii, Yu. V. ^{[2
]}

机构：

[1] All Russia Sci Ctr, SI Vavilov State Opt Inst, Sci Res & Technol Inst Opt Mat Sci, St Petersburg, Russia

[2] Russian Acad Sci, Sci Ctr Laser Mat & Technol, AM Prokhorov Inst Gen Phys, Moscow 117901, Russia

来源：

JOURNAL OF OPTICAL TECHNOLOGY | 2008年 / 75卷 / 11期

关键词：

D O I：

10.1364/JOT.75.000728

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Samples of the natural optical ceramic CaF2 from the Suran deposits (Southern Urals) have been studied as a model object. Nanostructure has been detected in this ceramic by the methods of electron and atomic-force microscopy. The conditions for obtaining precursors and the technological parameters of a process for obtaining a transparent fluoride ceramic with optical losses at a level of 10(-2)-10(-3) cm(-1) at a wavelength around 1 mu m have been selected, and this is a necessary condition for creating materials for photonics elements. The fluoride nanoceramic possesses improved mechanical properties by comparison with single crystals. The ceramic is free from cleavage, has a breakdown viscosity greater by a factor of 3-6, and its microhardness is 10-15% higher. The thermal conductivity of the fluoride ceramic and of the corresponding single crystal completely coincide. The spectroscopic characteristics of the fluoride nanoceramic differ insignificantly from the characteristics of single crystals of the corresponding composition. (C) 2008 Optical Society ofAmerica.

引用

页码：728 / 736

页数：9

共 34 条

[1] Anomalously high fracture toughness of polycrystalline optical fluorite from the Suran deposit (south urals) [J].