High quality factor 1-D Er3+-activated dielectric microcavity fabricated by RF-sputtering

被引：58

作者：

Valligatla, Sreeramulu ^{[1
,3
]}

Chiasera, Alessandro ^{[1
]}

Varas, Stefano ^{[1
]}

Bazzanella, Nicola ^{[2
]}

Rao, D. Narayana ^{[3
]}

Righini, Giancarlo C. ^{[4
,5
]}

Ferrari, Maurizio ^{[1
]}

机构：

[1] CNR IFN CSMFO Lab, I-38123 Povo, Trento, Italy

[2] Univ Trento, Dipartimento Fis, IdEA Lab, I-38123 Povo, Trento, Italy

[3] Univ Hyderabad, Sch Phys, Hyderabad 500046, Andhra Pradesh, India

[4] Ctr Fermi, I-00184 Rome, Italy

[5] CNR IFAC, I-50019 Florence, Italy

来源：

OPTICS EXPRESS | 2012年 / 20卷 / 19期

关键词：

PHOTOLUMINESCENCE; CRYSTAL;

D O I：

10.1364/OE.20.021214

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Rare earth-activated 1-D photonic crystals were fabricated by RF-sputtering technique. The cavity is constituted by an Er3+-doped SiO2 active layer inserted between two Bragg reflectors consisting of ten pairs of SiO2/TiO2 layers. Scanning electron microscopy is employed to put in evidence the quality of the sample, the homogeneities of the layers thickness and the good adhesion among them. Near infrared transmittance and variable angle reflectance spectra confirm the presence of a stop band from 1500 nm to 2000 nm with a cavity resonance centered at 1749 nm at 0 degrees and a quality factor of 890. The influence of the cavity on the I-4(13/2) -> I-4(15/2) emission band of Er3+ ion is also demonstrated. (C) 2012 Optical Society of America

引用

页码：21214 / 21222

页数：9

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