From fabrication to mode mapping in silicon nitride microdisks with embedded colloidal quantum dots

被引：17

作者：

De Geyter, Bram ^{[1
,2
,3
]}

Komorowska, Katarzyna ^{[1
,3
]}

Brainis, Edouard ^{[4
]}

Emplit, Philippe ^{[4
]}

Geiregat, Pieter ^{[1
,2
,3
]}

Hassinen, Antti ^{[2
,3
]}

Hens, Zeger ^{[2
,3
]}

Van Thourhout, Dries ^{[1
,3
]}

机构：

[1] Univ Ghent, IMEC, INTEC Dept, Photon Res Grp, B-9000 Ghent, Belgium

[2] Univ Ghent, Dept Inorgan & Phys Chem, B-9000 Ghent, Belgium

[3] Univ Ghent, Ctr Nano & Biophoton NB Photon, B-9000 Ghent, Belgium

[4] Univ Libre Brussels, Serv OPERA, Brussels, Belgium

来源：

APPLIED PHYSICS LETTERS | 2012年 / 101卷 / 16期

关键词：

SEMICONDUCTOR NANOCRYSTAL LASER; EMISSION;

D O I：

10.1063/1.4758990

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on the fabrication of free-standing and optically active microdisks with cadmium-based colloidal quantum dots embedded directly into silicon nitride. We show that the process optimization results in low-loss silicon nitride microdisks. The Si3N4 matrix provides the stability necessary to preserve the optical properties of the quantum dots and observe efficient coupling of the photoluminescence to the resonating microdisk modes. Using a spectrally and spatially resolved microphotoluminescence measurement, we map the emission pattern from the microdisk. This technique allows us to identify the resonant modes. The results show good agreement with numerical mode simulations. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4758990]

引用

页数：4

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