Heidelberg 2015 – wissenschaftliches Programm

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A: Fachverband Atomphysik

A 35: Poster: Precision spectroscopy of atoms and ions (with Q)

A 35.1: Poster

Donnerstag, 26. März 2015, 17:00–19:00, C/Foyer

Rydberg spectroscopy using optical and electrical read out in thermal vapor cells — •Johannes Schmidt1,2, Renate Daschner1, Patrick Schalberger2, Harald Kübler1, Norbert Frühauf2, and Tilman Pfau115. Physikalisches Institut — 2Institut für großflächige Mikroelektronik, Universität Stuttgart, Germany

Rydberg atoms in a thermal vapor are discussed as promising candidates for the realization of quantum devices such as single photon sources or single photon subtractors. We present a very sensitive and scalable method to measure the population of highly excited Rydberg states in a thermal vapor cell of rubidium atoms. For this application a cell with structured electrodes and a sealing method based on anodic bonding was invented [1]. The large DC Stark shift of Rydberg atoms provides a possibility to induce transmission or absorption in the medium. Rydberg spectroscopy can be done either by measuring the optical transmission [2] or the Rydberg ionization current [3]. This technique is compatible with state of the art fabrication methods of thin film electronics offering both scalability and miniaturization. Future prospects are arrays of individually addressable sites with integrated electronics, e.g. for signal amplification.

[1] Daschner, R., et al., Appl. Phys. Lett. 105, 041107 (2014)
[2] Daschner, R., et al., Opt. Lett. 37, 2271 (2012)
[3] Barredo, D.,et al., Phys. Rev. Lett. 110, 123002 (2013)

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