Chen Zhang, Tao Chen, Yu Zhao. Single Micro-Nano Particle Detection Based on Laser Self-Mixing Interference Technology[J]. Laser & Optoelectronics Progress, 2020, 57(19): 192803
- Laser & Optoelectronics Progress
- Vol. 57, Issue 19, 192803 (2020)
Fig. 1. Laser SMI generated by laser irradiation of moving particles
Fig. 2. Schematic diagram of SMI's microfluidic platform
Fig. 3. Schematic diagram of detecting a single flowing particle
Fig. 4. Laser SMI signal generated by particles with diameter of 5 μm (time-domain)
Fig. 5. Laser SMI signal generated by particles with diameter of 5 μm (frequency-domain)
Fig. 6. FWHM of laser SMI signal generated by particles of different diameters
Fig. 7. Time-domain signal waveforms obtained with different particle diameters. (a) 10 μm; (b) 5 μm; (c) 2 μm; (d) 0.5 μm
Fig. 8. Laser SMI time domain signals of particles with different diameters. (a) Pulse width; (b) number of fringes
Fig. 9. CV of laser SMI signal of particles with different diameters
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