Profil of research : Light-particule interaction and optical metrology
Websites ANR AMO-COPS
Fang Ren
Professeur
Home departement
RESEARCH
THEORETICAL RESEARCH:
- Development of Vectorial Compex Ray Model for interaction of light with an object of arbitrary shape and smooth surface.
- Theoretical and numerical research on laser beam scattering by a homogeneous or layered spherical and cylindrical particle.
- Prediction of mechanical effects (force and torque) exerted on a particle by a laser beam.
EXPERIMENTAL RESEARCH:
- Extinction spectrometry and its applications in the measurement of Fine particles such as wet vapor, soot, aerosols, etc.
- Particle imaging and applications in shadow Doppler velocimetry, Glaire Spot Phase, …
- Rainbow refractometry and applications to the study of the stability of a liquid jet and the characterization of non-spherical particles, …
PUBLICATIONS
- C. Zhang, C. Rozé, and K. F. Ren, “Airy theory revisited with VCRM and physical optics”, ELS XIX 2021 pdf
- K. F. Ren and C. Rozé, “Vectorial Complex Ray Model for light scattering of nonspherical particles”, Chap. 7 in Advances in Optics : Reviews, vol. 1, IFSA Publishing, 2018 pdf
- K. F. Ren, F. Onofri, C. Rozé and T. Girasole, “Vectorial complex ray model and application to two dimensional scattering of plane wave by a spheroidal particle", Opt. Lett. 36(3) : 370-372, 2011 pdf
- F. Onofri, K. F. Ren, M. Sentis, Q. Gaubert, and C. Pelcé, “Experimental validation of the vectorial complex ray model on the inter-caustics scattering of oblate droplets", Opt. Exp. 23(12), 15768-15773, 2015 pdf
- K. F. Ren “Numerical techniques for shaped beam scattering by large and absorbing particle using variable separation methods" , LIP 2014, Marseille (France), Keynote
More publications …
Rainbow of a deformed drop simulated by VCRM.
VCRM predits better the positions and the intensities of Airy bows than the theory of Airy in comparison with the rigorous theory of Debye.
Comparison of the scattering patterns of a pendent drop obtained experimentally (a), (b) and simulated by VCRM (c), (d).