Thesis Submission
STUDY OF INTERACTION OF ULTRA-COLD GAS INSIDE OPTICAL CAVIT
Speaker: ARUN BAHULEYAN (PhD Student, RRI)
Optical cavities offer an ideal platform for achieving coherent and controlled light-matter interactions. When atoms, driven by a laser field, are coupled to a cavity mode, their spectral, temporal, and spatial emission patterns undergo significant modifications. The nature of these emission patterns depends on the strength of the atom-cavity coupling. In this thesis, we investigate the emission behavior of driven atoms collectively coupled to a cavity, specifically in the context of atoms from a continuously operated magneto-optic trap (MOT) interacting strongly with the cavity mode. We explored the mechanisms, characteristics, and the spatial patterns of light emission in the system. By carefully tuning the atom-cavity and atom-drive parameters, we show the generation of inversion-less ultra-narrow linewidth lasers within this system. Additionally, we utilize the emission patterns to gain insights into the spatial density profile of the trapped atoms, which can be extended to non-destructive imaging. Finally, we examine the mechanical effects of cavity emissions on the trapped atoms, which can either enhance or suppress the MOT fluorescence.