4.6 Article

Temporal visualization of femtosecond laser pulses with single-edge transport in turbid media via Monte Carlo simulation

期刊

OPTICS LETTERS
卷 46, 期 10, 页码 2284-2287

出版社

OPTICAL SOC AMER
DOI: 10.1364/OL.423483

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  1. Science Foundation for Doctorate Research from the University of Jinan [XBS1823]
  2. Program of Jinan Innovation Team [2018GXRC011]
  3. Key Technologies Research and Development Program [2017YFB0404902]
  4. NationalNatural Science Foundation of China [61905090]

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The study investigates the propagation of femtosecond laser pulses through turbid media via Monte Carlo simulation. It shows that transmitted pulses spread due to scattering effects, with dual-edge pulses having wider broadening than single-edge pulses. The influence of scattering particles on front and rear edges of femtosecond laser pulses can be distinguished in turbid media with optical depth less than 10.
We study the propagation of femtosecond. laser pulses with a single (front or rear) edge or dual edge through turbid media via Monte Carlo simulation. The results show that both the transmitted pulses spread on the basis of the incident pulse width t(p) = 100 fs, arising from the scattering effect. Further, the broadening width of the incident laser with a dual-edge pulse is wider than that of the incident laser width a single edge pulse. The effect of the scattering particles on the front edge and the rear edge of the femtosecond laser can be distinguished in the time domain for femtosecond laser pulses through turbid media with the optical depth (OD) less than 10. In this scattering regime, the front-edge pulse scattered. by the particles contributes more to diffused photons, but the effect of the scattering particles on the front edge and the rear edge of the femtosecond laser cannot be discriminated in turbid media with the OD more than 10, where the scattering is dominated by multiple scattering. (C) 2021 Optical Society of America

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