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Magnetically Controllable Random Lasers
Author(s) -
Tsai ChengYen,
Liao YuMing,
Liao WeiCheng,
Lin WeiJu,
Perumal Packiyaraj,
Hu HsiuHao,
Lin ShihYao,
Chang ChengHan,
Cai ShuYi,
Sun TzuMin,
Lin HungI,
Haider Golam,
Chen YangFang
Publication year - 2017
Publication title -
advanced materials technologies
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.184
H-Index - 42
ISSN - 2365-709X
DOI - 10.1002/admt.201700170
Subject(s) - materials science , controllability , random laser , laser , magnetic field , nanoparticle , responsivity , optoelectronics , nanotechnology , optics , photodetector , physics , wavelength , mathematics , quantum mechanics , lasing threshold
Toward practical applications of random lasers, controllability is a key factor. Here, magnetically controllable random lasers (MCRLs) are designed, fabricated, and demonstrated. Under a prescribed magnetic field, the MCRLs composed of stilbene 420 laser dye, TiO 2 nanoparticles, and Fe 3 O 4 nanoparticles possess magnetic controllability and switchability with good responsivity and durability. The applied magnetic field can be used to manipulate the distribution of Fe 3 O 4 nanoparticles, which in turn alters the formation of the coherent loops and the properties of laser action. The MCRLs developed here can serve as magneto‐optics prototypes for several potential applications, such as biomedicine and optical communications.