Pre-Submission Thesis Presentation

The light matter interaction and studying the atomic response has been a long-standing interest in the domain of atomic physics and quantum optics. The quantum interference effect emerging due to interference of transition pathways are popularly known as Electromagnetically Induced Transparency (EIT) or Electromagnetically Induced Absorption (EIA). In this talk I’ll demonstrate the emergence of multiple quantum resonance line-shapes appearing due to narrow ground-state hyperfine splitting of 39K atoms in warm vapor state. This has application in spatial magnetic field detection, off-set locking of laser at far-off resonant frequencies, storing photons as quantum memory register etc. 

However, the storage of these photons as well as the line-shape properties of quantum resonance are greatly affected in presence of non-Gaussian light such as vortex light (Laguerre Gaussian LG beam). In this talk, I will detail about the fast generation and switching (~ 100 µs) of different LG modes which is the first step to study OAM-atom interaction with vortex light. 

In the later part, I’ll discuss the characterizations and capabilities of our recently built Na-K dual species cold atomic system. Also. I will discuss the detection scheme of cold atoms and demonstrate a python-based algorithm to denoise such cold images to get more reliable information without altering atomic information.