Michal Bajcsy
Harvard
"Cold Atoms Inside a Hollow-Core Photonic Crystal Fiber"
Cold atoms confined inside a hollow-core photonic crystal fiber with core diameter of a few photon wavelengths are a promising medium for studying nonlinear optical interactions at extremely low light levels. The high electric field intensity per photon, large optical depths created by a small number of atoms, and interaction lengths not limited to diffraction are some of the unique features of this system. I'll describe recent progress in our experiment that uses a combination of magnetic trapping and a red-detuned optical dipole trap to transfer cold Rb87 atoms into the hollow-core fiber. The talk will include data on atom observation inside the fiber and preliminary experiments toward nonlinear optics with few photon pulses.