Abstract

We shows, how real time spatial shaping of pump profile imposed on a strongly scattering gain medium can be used to achieve single mode lasing at pre-selected target wavelength. Simultaneously, near field imaging of the sample surface from the top allow us to record field distribution of the localized modes. We show that slope efficiency of Ander-son localized lasing mode enhanced by one order magnitude under selective pumping.

© 2022 The Author(s)