title: Generation of large alkali vapor densities inside bare hollow-core photonic band-gap fibers.
abstract: We demonstrate the ability to generate extremely large rubidium densities in uncoated hollow-core photonic band-gap fibers using light-induced atomic desorption. Once the fiber is exposed to Rb vapor for 1-2 weeks, and this atomic source is removed, the fiber yields large desorbable densities for an extended period of time. We show that optical depths greater than e(-1200) can be created within seconds. Our observed Rb densities are several orders of magnitude larger than any previously reported to be generated optically, and allow for the demonstration of a relatively easy-to-use fiber-based vapor cell capable of producing large optical depths without the need for thermal tuning.
authors: School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA. as584@cornell.edu
authors: Aaron D
authors: AD
authors: Slepkov
authors: Amar R
authors: AR
authors: Bhagwat
authors: Vivek
authors: V
authors: Venkataraman
authors: Pablo
authors: P
authors: Londero
authors: Alexander L
authors: AL
authors: Gaeta
mesh_terms: D000468:Alkalies / Q000737:chemistry*; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005740:Gases / Q000737:chemistry*; D055100:Optical Fibers; D017785:Photons; D015203:Reproducibility of Results; D012413:Rubidium / Q000737:chemistry*; D012680:Sensitivity and Specificity
chemical_list: D000468:Alkalies; D005740:Gases; D012413:Rubidium