Single-atom absorption imaging

被引：0
|
作者：
Streed, E. W. [1 ]
Jechow, A. [1 ]
Norton, B. G. [1 ]
Kielpinski, D. [1 ]
机构：
[1] Griffith Univ, Ctr Quantum Dynam, Brisbane, Qld 4111, Australia
来源：
ADVANCES IN PHOTONICS OF QUANTUM COMPUTING, MEMORY, AND COMMUNICATION V | 2012年 / 8272卷
关键词：
Absorption imaging; quantum computing; ion trap; Ytterbium; Fresnel lens; quantum optics; YTTERBIUM IONS; SPECTROSCOPY; LASER;
D O I：
10.1117/12.926837
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Absorption of light is a fundamental process in imaging. The optical properties of atoms are thoroughly understood, so a single atom is an ideal system for testing the quantum limits of absorption imaging. Here we report the first absorption imaging of a single isolated atom, the smallest and simplest system reported to date. Contrasts of up to 3.1(3)% were observed in images of a laser cooled Yb-174(+) ion confined in vacuum by a radio-frequency Paul trap. This work establishes a new sensitivity bound for absorption imaging with a 7800x improvement over the contrast previously observed in imaging a single molecule.
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页数：6
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