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 con… Show more
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