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Polymers 2018, 10(11), 1194; https://doi.org/10.3390/polym10111194

Polymer Lasing in a Periodic-Random Compound Cavity

1
Institute of Information Photonics Technology and College of Applied Sciences, Beijing University of Technology, Beijing 100124, China
2
Department of Physics, Capital Normal University, Beijing 100048, China
*
Authors to whom correspondence should be addressed.
Received: 30 September 2018 / Revised: 22 October 2018 / Accepted: 23 October 2018 / Published: 26 October 2018
(This article belongs to the Special Issue Laser processing in polymer research)
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Abstract

Simultaneous distributed feedback (DFB) lasing and linear polarized random lasing are observed in a compound cavity, which consists of a grating cavity and a random cavity. The grating cavity is fabricated by interference lithography. A light-emitting polymer doped with silver nanoparticles is spin-coated on the grating, forming a random cavity. DFB lasing and random lasing occur when the periodic-random compound cavity is optically pumped. The directionality and polarization of the random laser are modified by the grating structure. These results can potentially be used to design integrated laser sources. View Full-Text
Keywords: distributed feedback laser; random laser; polymer laser; compound cavity distributed feedback laser; random laser; polymer laser; compound cavity
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Zhai, T.; Wu, X.; Li, S.; Liang, S.; Niu, L.; Wang, M.; Feng, S.; Liu, H.; Zhang, X. Polymer Lasing in a Periodic-Random Compound Cavity. Polymers 2018, 10, 1194.

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