Waveguiding properties of Er-implanted silicon-rich oxides

被引：9

作者：

Elliman, R. G. ^{[1
]}

Forcales, M. ^{[1
]}

Wilkinson, A. R. ^{[1
]}

Smith, N. J. ^{[1
]}

机构：

[1] Australian Natl Univ, Res Sch Phys Sci & Engn, Elect Mat Engn Dept, Canberra, ACT 0200, Australia

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2007年 / 257卷

基金：

澳大利亚研究理事会;

关键词：

nanocrystal; nanocluster; silicon; photonics; erbium; luminescence; absorption;

D O I：

10.1016/j.nimb.2006.12.121

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The optical properties of erbium-doped silicon-rich silicon-oxide waveguides containing amorphous silicon nanoclusters and/or silicon nanocrystals are reported. Both amorphous nanoclusters and nanocrystals are shown to act as effective sensitizers for Er, with nanocrystals being more effective at low pump powers and nanoclusters being more effective at higher pump powers. All samples are shown to exhibit photo-induced absorption, as measured for a guided 1.5 mu m probe beam while the waveguide was illuminated from above with a 477 nm pump beam. At a given pump power samples containing silicon nanocrystals exhibited greater attenuation than samples containing amorphous nanoclusters. The absorption is shown to be consistent with confined-carrier absorption due to photoexcited carriers in the nanocrystals and/or nanoclusters. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：11 / 14

页数：4

共 13 条

[1]

CANHAM LT, 1990, APPL PHYS LETT, V57, P1045

[2] Pump-probe experiments at 1.54 μm on silicon-rich silicon oxide waveguides [J].