Abstract

Hollow-core waveguides form the foundation of a new class of atomic spectroscopy chips that allows for large light-matter interactions at ultralow power levels [1-3]. We will review the development of a chip-scale platform for large quantum interference effects in hot rubidium vapor [4]. These include 44% optical transparency and a group index of 1,200. The concomitant reduction in the group velocity of light results in the largest slow light effects observed in waveguide-based environments to date.

© 2011 Optical Society of America