Sensing strategy based on random slot semiconductor laser
2023-06-19
Author(s): Jia, XQ (Jia, Xiaoqin); Wang, YF (Wang, Yufei); Liu, GQ (Liu, Guangqiang); Zhou, XY (Zhou, Xuyan); Zhang, JX (Zhang, Jianxin); Dong, FX (Dong, Fengxin); Gong, K (Gong, Kai); Zhang, R (Zhang, Run)
Source: LASER PHYSICS Volume: 33 Issue: 7 Article Number: 076204 DOI: 10.1088/1555-6611/acd7da Published: JUL 1 2023
Abstract: A photonic sensor based on a random slot surface-emitting semiconductor laser is theoretically demonstrated by utilizing multi-order diffraction. The results show that the variation of far-field local speckles at single wavelength lasing can be utilized to confirm the refractive index of the substances and the flow velocity of erythrocytes in capillaries. The similarity of the intensity contrast is the other protocol to measure the flow velocity of erythrocytes. Additionally, the similarity of the spectral contrast at multiple wavelengths lasing can be used to determine the concentration of erythrocytes in capillaries. The random slot semiconductor laser may provide a new and flexible platform for versatile active sensing.
Accession Number: WOS:000998740100001
ISSN: 1054-660X
eISSN: 1555-6611
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