Magnetically tunable random lasing from polymer dispersed liquid crystal doped ferromagnetic nanoparticles in capillary

H. T. Dai; M. N. Gao; Y. X. Xue; A. X. Xiao; A. Ahmad; Z. Mohamed; C. L. Liu; Q. Lu; S. Z. Feng

doi:10.1063/1.5120438

journal article·2019-11-01Open access

Magnetically tunable random lasing from polymer dispersed liquid crystal doped ferromagnetic nanoparticles in capillary

H. T. Dai, M. N. Gao, Y. X. Xue, A. X. Xiao, A. Ahmad, Z. Mohamed, C. L. Liu, Q. Lu, S. Z. Feng

AIP Advances· Volume 9· Issue 11

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Source abstract

Abstract

In this paper, magnetically tunable random lasing from a polymer dispersed liquid crystal (PDLC) in a capillary was achieved by means of doping with magnetic nanoparticles (MNPs). We experimentally explored the effects of the concentration of MNPs and the amplitude and direction of the magnetic field on the emission properties of random lasing, such as threshold, envelope of the emission spectrum, and intensities. The related mechanism was also investigated theoretically. Experimental results also showed that weakly tuned effects appeared from the sample with a polymer or pure liquid crystal (LC) doped with MNPs in comparison with PDLCs. Our research would provide an additional way to achieve tunable compact LC-based lasers.

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Research context

Polymers Nanomaterials

OpenAlex topics: Random lasers and scattering media · Orbital Angular Momentum in Optics · Photonic Crystals and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Tianjin Key Laboratory of Low Dimensional Materials Physics and Preparing Technology, School of Science, Tianjin University 1 , Tianjin 300072, China

School of Precision Instrument and Optoelectronics Engineering, Tianjin University 2 , Tianjin 300072, China

Key Laboratory of Opto-electronics Information Technology, Ministry of Education 3 , Tianjin 300072, China

AnHui Zhongyi New Materials Technology Company 4 , AnHui 239500, China

Funding

National Natural Science Foundation of China · Guangdong Innovative and Entrepreneurial Research Team Program · Natural Science Foundation of Guangdong Province · Science, Technology and Innovation Commission of Shenzhen Municipality

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