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Updated: May 31, 2026

Scattering And Absorption of Light in Planetary Regoliths
Published on: July 1, 2019
Stimulated light emission and inelastic scattering by a classical linear system of rotating particles
Ana Asenjo-Garcia1, Alejandro Manjavacas, F Javier García de Abajo
1Instituto de Óptica-CSIC, Serrano 121, 28006 Madrid, Spain.
Abstract:
The rotational dynamics of particles subject to external illumination is found to produce light amplification and inelastic scattering at high rotation velocities. Light emission at frequencies shifted with respect to the incident light by twice the rotation frequency dominates over elastic scattering within a wide range of light and rotation frequencies. Remarkably, net amplification of the incident light is produced in this classical linear system via stimulated emission. Large optically induced acceleration rates are predicted in vacuum accompanied by moderate heating of the particle, thus supporting the possibility of observing these effects under extreme rotation conditions.
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