Distributed feedback lasing in a metallic cavity

被引：10

作者：

Zhai, Tianrui ^{[1
]}

Tong, Fei

Cao, Fengzhao

Niu, Lianze

Li, Songtao

Wang, Meng

Zhang, Xinping

机构：

[1] Beijing Univ Technol, Inst Informat Photon Technol, Beijing 100124, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2017年 / 111卷 / 11期

基金：

中国国家自然科学基金;

关键词：

POLYMER LASERS; EMISSION; ARRAYS; THRESHOLD;

D O I：

10.1063/1.5003110

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Distributed feedback (DFB) lasing is observed in a metallic cavity, which consists of a gold grating and a polymer membrane. The gold grating is prepared by evaporating a 25 nm thin film of gold on the photoresist grating fabricated by interference lithography. A 150 nm thick polymer membrane is directly attached on the gold grating, forming a suspended membrane supported by the grating ridge. The assembly method decreases the metallic contact area, which makes the mode more photonic and thereby reduces the ohmic loss of the metal. Low threshold DFB lasing can be achieved when the sample is optically pumped. The fabrication technique provides a facile way to realize plasmonic DFB polymer lasers. (C) 2017 Author(s).

引用

页数：4

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