Room temperature measurement of the anisotropic loss tangent of sapphire using the whispering gallery mode technique

被引：31
|
作者：
Hartnett, JG
Tobar, ME
Ivanov, EN
Krupka, J
机构：
[1] Univ Western Australia, Sch Phys, Frequency Stand & Metrol Grp, Nedlands, WA 6009, Australia
[2] Politech Warszawskiej, Inst Mikroelekt & Optoelekt, PL-00662 Warsaw, Poland
来源：
IEEE TRANSACTIONS ON ULTRASONICS FERROELECTRICS AND FREQUENCY CONTROL | 2006年 / 53卷 / 01期
基金：
澳大利亚研究理事会;
关键词：
D O I：
10.1109/TUFFC.2006.1588389
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
The anisotropic loss tangent has been determined in monocrystalline sapphire for components parallel and perpendicular to the crystal axis, using the whispering gallery (WG) mode method. The Q-factors of quasi-TE and quasi-TM modes were measured precisely in four cylindrical sapphire resonators at room temperature, from which was determined a maximum attainable Q-factor of (2.1 +/- 0.2) X 10(5) at 9 GHz in a quasi-TM mode. Sapphire dielectric material from three different manufacturers was compared over the 270-345 K temperature range and the 5-16 GHz frequency range.
引用
收藏
页码：34 / 38
页数：5
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