Issue 37, 2015
From the journal:

Nanoscale

Single-excitation dual-color coherent lasing by tuning resonance energy transfer processes in porous structured nanowires†

Zhaona Wang,*a   Xiaoyu Shi,a   Ruomeng Yu,b   Sujun Wei,a   Qing Chang,a   Yanrong Wang,a   Dahe Liu*a  and  Zhong Lin Wangbc  

* Corresponding authors

a Applied Optics Beijing Area Major Laboratory, Department of Physics, Beijing Normal University, Beijing, China
E-mail: zhnwang@bnu.edu.cn, dhliu@bnu.edu.cn

b School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332-0245, USA

c Beijing Institute of Nanoenergy and Nanosystems, Chinese Academy of Sciences, Beijing, China

Abstract

Single-excitation dual-color coherent lasing was achieved in a mixed random system of a binary dye and the suspension of gold–silver porous nanowires with plenty of nanogaps. This greatly enhanced the local electromagnetic field in the visible range and guaranteed a low threshold and high Q factor (>10 000) operator for simultaneous dual-color lasing. By tuning the resonance energy transfer process in the stimulated emission, triple output modes (single chartreuse lasing, chartreuse and red dual-color lasing, and single red coherent lasing) were easily obtained. This triple-mode coherent random lasing introduces a new approach to designing multi-functional micro-optoelectronic devices for multi-color speckle-free imaging and interference.

Graphical abstract: Single-excitation dual-color coherent lasing by tuning resonance energy transfer processes in porous structured nanowires

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Supplementary files

Article information

DOI
https://doi.org/10.1039/C5NR03349G
Article type
Communication
Submitted
21 May 2015
Accepted
20 Aug 2015
First published
25 Aug 2015

Nanoscale, 2015,7, 15091-15098

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Single-excitation dual-color coherent lasing by tuning resonance energy transfer processes in porous structured nanowires

Z. Wang, X. Shi, R. Yu, S. Wei, Q. Chang, Y. Wang, D. Liu and Z. L. Wang, Nanoscale, 2015, 7, 15091 DOI: 10.1039/C5NR03349G

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