Free-space cavity optomechanics in a cryogenic environment

A. G. Kuhn (1) , J. Teissier (1) , L. Neuhaus (1) , S. Zerkani , E. van Brackel , S. Deléglise , T. Briant , P.-F. Cohadon , A. Heidmann , C. Michel , L. Pinard (2) , V. Dolique (2) , R. Flaminio (2) , R. Taïbi , C. Chartier (1) , O. Le Traon (3)

1 LKB (Jussieu) - Laboratoire Kastler Brossel
2 LMA - Laboratoire des matériaux avancés
3 ONERA - The French Aerospace Lab [Palaiseau]

We present a free-space optomechanical system operating in the 1-K range. The device is made of a high mechanical quality factor micropillar with a high-reflectivity optical coating atop, combined with an ultra-small radius-of-curvature coupling mirror to form a high-finesse Fabry-Perot cavity embedded in a dilution refrigerator. The cavity environment as well as the cryostat have been designed to ensure low vibrations and to preserve micron-level alignment from room temperature

Domaines: Optique [physics.optics]; Science des matériaux [cond-mat.mtrl-sci]

A. G. Kuhn, J. Teissier, L. Neuhaus, S. Zerkani, E. van Brackel, et al.. Free-space cavity optomechanics in a cryogenic environment. Applied Physics Letters, 2014, 104 (4), ⟨10.1063/1.4863666⟩. ⟨in2p3-01357440⟩