An all-optical trap for a gram-scale mirror
摘要
We report on a stable optical trap suitable for a macroscopic mirror, wherein the dynamics of the mirror are fully dominated by radiation pressure. The technique employs two frequency-offset laser fields to simultaneously create a stiff optical restoring force and a viscous optical damping force. We show how these forces may be used to optically trap a free mass without introducing thermal noise; and we demonstrate the technique experimentally with a 1 gram mirror. The observed optical spring has an inferred Young's modulus of 1.2 TPa, 20% stiffer than diamond. The trap is intrinsically cold and reaches an effective temperature of 0.8 K, limited by technical noise in our apparatus.
引用
@article{arxiv.quant-ph/0612188,
title = {An all-optical trap for a gram-scale mirror},
author = {T. Corbitt and Y. Chen and H. Mueller-Ebhardt and E. Innerhofer and D. Ottaway and H. Rehbein and D. Sigg and S. Whitcomb and C. Wipf and N. Mavalvala},
journal= {arXiv preprint arXiv:quant-ph/0612188},
year = {2013}
}
备注
Major revision. Replacement is version that appears in Phy. Rev. Lett. 98, 150802 (2007)