| Description: | [DPS Seminar] Dr. Chitram Banerjee (Laboratoire Aime Cotton, University Paris Saclay, Orsay, France) -- Study of two coherent non-linear optical processes induced by ultra-narrow resonances in atoms |
| Date: | Wednesday, Sep 04, 2019 |
| Time: | noon - 1 p.m. |
| Venue: | 113, A J C Bose |
| Details: | Light-atom interactions form the basis of technologies such as telecommunication, information processing, sensing, etc. In this talk, two distinct phenomena are discussed both of which occur due to non-linear interactions between light and atoms. The first part is dedicated to four-wave-mixing based on the internal degrees of freedom of room-temperature helium atoms and uses it for optical signal amplification and generation of squeezed states of light. The second part is based on external degrees of freedom of cold atoms and used for light storage and phase conjugate field generation through multi-wave mixing. |
| Calendar: | Seminar Calendar (entered by anandamohan) |