Ultra thin high index contrast photonic crystal slabs in lithium niobate

被引：26

作者：

Hartung, Holger ^{[1
]}

Kley, Ernst-Bernhard ^{[1
]}

Gischkat, Thomas ^{[2
]}

Schrempel, Frank ^{[2
]}

Wesch, Werner ^{[2
]}

Tuennermann, Andreas ^{[1
]}

机构：

[1] Univ Jena, Inst Appl Phys, D-07743 Jena, Germany

[2] Univ Jena, Inst Solid State Phys, D-07743 Jena, Germany

来源：

OPTICAL MATERIALS | 2010年 / 33卷 / 01期

关键词：

Lithium niobat; Ion irradiation; Photonic crystal; Fabrication; RIDGE WAVE-GUIDES; FABRICATION; LINBO3; FILMS;

D O I：

10.1016/j.optmat.2010.07.012

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present for the first time the realization of a free standing photonic crystal slab with a thickness of 450 nm in lithium niobate. The air slot underneath the membrane as well as the air holes, constituting the photonic crystal therein, are realized by the application of ion beam enhanced etching onto bulk lithium niobate. The index difference of 1.2 and the small membrane thickness allow for a very strong vertical confinement of the light and a single mode waveguide behavior (lambda = 1550 nm) at the same time. A photonic crystal structure in a 5 mm long membrane, suspended in air, is shown. (C) 2010 Elsevier B.V. All rights reserved.

引用

收藏

页码：19 / 21

页数：3

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