期刊
OPTICS EXPRESS
卷 28, 期 4, 页码 5179-5188出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.384105
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资金
- National Natural Science Foundation of China [11404086, 11404087, 11574070, 11874012, 11874126, 51771186, 61501165]
- Fundamental Research Funds for the Central Universities [JZ2019HGPA0099, PA2018GDQT0006]
- Southwest University of Science and Technology [19FKSY0111]
- Anhui Province Key Laboratory of Environment-Friendly Polymer Materials [KF2019001]
- H2020 Marie Sklodowska-Curie Actions [744817]
- China Postdoctoral Science Foundation [2015M571917, 2017T100442]
In this paper, pure silk protein was extracted from Bombyx mori silks and fabricated into a new kind of disordered bio-microfiber structure using electrospinning technology. Coherent random lasing emission with low threshold was achieved in the silk fibroin fibers. The random lasing emission wavelength can be tuned in the range of 33 nm by controlling the pump location with different scattering strengths. Therefore, the bio-microfiber random lasers can be a wide spectral light source when the system is doped with a gain or energy transfer medium with a large fluorescence emission band. Application of the random lasers of the bio-microfibers as a low-coherence light source in speckle-free imaging had also been studied. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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