Characterization of heteroepitaxial Na0.5K0.5NbO3/La0.5Sr0.5CoO3 electro-optical cell -: art. no. 062901

被引：26

作者：

Khartsev, SI ^{[1
]}

Grishin, MA ^{[1
]}

Grishin, AM ^{[1
]}

机构：

[1] Royal Inst Technol, Dept Microelect & Informat Technol, SE-16440 Stockholm, Sweden

来源：

APPLIED PHYSICS LETTERS | 2005年 / 86卷 / 06期

关键词：

D O I：

10.1063/1.1861121

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Heteroepitaxial Na0.5K0.5NbO3(1.5 mum)/La0.5Sr0.5CoO3(0.5 mum) (NKN/LSCO) films were grown on an Al2O3(0112) single crystal (r-cut sapphire) by rf-magnetron sputtering (NKN) and pulsed laser deposition (LSCO) techniques. Prism coupling waveguide refractometry has been employed to characterize vertical capacitive electro-optical cells with 2 X 8 mm(2) semitransparent Au top electrodes. Fitting reflectivity spectra to Fresnel formulas yields extraordinary and ordinary refractive indices n(e) = 2.232 and n(o) = 2.234 as well as electro-optic coefficient r(13) = 17.4 pm/V. Dispersion of the refraction index follows the Sellmeier formula n(2) = 1 + 3.46/[1-(244 nm/lambda)(2)] in the range from 400 nm to 850 nm. (C) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

共 20 条

[1] KNBO3 ELECTRO-OPTIC INDUCED OPTICAL WAVE-GUIDE CUTOFFS MODULATOR [J].

BAUMERT, JC ;

WALTHER, C ;

BUCHMANN, P ;

KAUFMANN, H ;

MELCHIOR, H ;

GUNTER, P .

APPLIED PHYSICS LETTERS, 1985, 46 (11) :1018-1020

[2] Optical waveguiding in magnetron-sputtered Na0.5K0.5NbO3 thin films on sapphire substrates [J].

Blomqvist, M ;

Khartsev, S ;

Grishin, A ;

Petraru, A ;

Buchal, C .

APPLIED PHYSICS LETTERS, 2003, 82 (03) :439-441

[3] High-performance epitaxial Na0.5K0.5NbO3 thin films by magnetron sputtering [J].

Blomqvist, M ;

Koh, JH ;

Khartsev, S ;

Grishin, A ;

Andréasson, J .

APPLIED PHYSICS LETTERS, 2002, 81 (02) :337-339

[4]

Cho CR, 1999, APPL PHYS LETT, V75, P268, DOI 10.1063/1.124344

[5] Na0.5K0.5NbO3 thin films for voltage controlled acoustoelectric device applications [J].

Cho, CR ;

Katardjiev, I ;

Grishin, M ;

Grishin, A .

APPLIED PHYSICS LETTERS, 2002, 80 (17) :3171-3173

[6] Thin Na0.5K0.5NbO3 films for varactor applications [J].

Cho, CR ;

Koh, JH ;

Grishin, A ;

Abadei, S ;

Petrov, P ;

Gevorgian, S .

MATERIALS SCIENCE OF NOVEL OXIDE-BASED ELECTRONICS, 2000, 623 :109-118

[7] Background oxygen effects on pulsed laser deposited Na0.5K0.5NbO3 films:: From superparaelectric state to ferroelectricity [J].

Cho, CR ;

Grishin, A .

JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) :4439-4448

[8] OPTICAL STRIP WAVE-GUIDES IN KNBO3 FORMED BY HE ION-IMPLANTATION [J].

FLUCK, D ;

GUNTER, P ;

IRMSCHER, R ;

BUCHAL, C .

APPLIED PHYSICS LETTERS, 1991, 59 (25) :3213-3215

[9]

Grishin MA, 2001, INTEGR FERROELECTR, V39, P1301, DOI 10.1080/10584580108011958

[10] ELECTROOPTICAL PROPERTIES OF KNBO3 [J].

GUNTER, P .

OPTICS COMMUNICATIONS, 1974, 11 (03) :285-290

← 1 2 →