Darmstadt 2008 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 28: Poster Quanteninformation

Q 28.21: Poster

Tuesday, March 11, 2008, 16:30–19:00, Poster C2

HC-PCF based Rubidium vapor cell — •wenjia zhong¹, christoph marquardt¹, ulrik l. andersen², and gerd leuchs¹ — ¹Institute of Optics, Information and Photonics, University of Erlangen-Nuremberg, 91058 Erlangen, Germany — ²Department of Physics, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark

Using hollow core photonic crystal fiber as a vapor cell has the advantage of long interaction length and small laser beam area. We filled the core of a HC-PCF with liquid Rubidium using microfluidic methods and put the fiber ends inside vacuum chambers to prevent oxidization and quenching. With a constant temperature along the entire length of the fiber, the rubidium will be evaporated to prevent bulk condensation. The Rb density will be monitored by the help of absorption spectroscopy.

We plan to use the D1 transition of Rb and a femtosecond laser beam to achieve the sharp-line limit of self-induced transparency. The nonlinearity inherent in detuned SIT will then be exploited for the generation of squeezed states.