Dresden 2011 – scientific programme

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Q: Fachverband Quantenoptik und Photonik

Q 15: Poster 1: Quanteninformation, Quanteneffekte, Laserentwicklung, Laseranwendungen, Ultrakurze Pulse, Photonik

Q 15.78: Poster

Monday, March 14, 2011, 16:30–19:30, P1

An optical cavity with a strongly focused mode — •Kadir Durak, Syed Abdullah Aljunid, Brenda Chng, Gleb Maslennikov, and Christian Kurtsiefer — Centre for Quantum Technologies / Dept. of Physics, National University of Singapore

Electrical field enhancement with optical cavities is a common method to observe strong coupling between atoms and photons for efficient quantum interfaces. Commonly, free-space cavities for such experiments have paraxial field modes, but additional field enhancement can be accpomplished by placing the atoms in focused cavity modes [1]. We investigate an anaclastic cavity lens configuration [2], which provides strong coupling with a moderate finesse cavity and allow for efficient matching to Gaussian modes outside the cavity[3]. We report on our progress for mode characterization and alignment of such a nearly- critical resonator.

[1] S.E. Morrin, C.C. Yu, T.W. Mossberg, Phys. Rev. Lett. 73 1489 (1994).
[2] Ibn Sahl, On burning mirrors and lenses. Baghdad (984).
[3] S.A. Aljunid et al., arXiv:1006.2191v1 / J. Mod. Opt. (2010)