Cold Atom Cloud with High Optical Depth Measured with Large Duty Cycle

被引：5

作者：

Zhang Jun ^{[1
]}

Gu Zhen-Jie ^{[1
]}

Qian Peng ^{[1
]}

Han Zhi-Guang ^{[1
]}

Chen Jie-Fei ^{[1
]}

机构：

[1] E China Normal Univ, Dept Phys, Shanghai 200062, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2015年 / 32卷 / 06期

基金：

中国国家自然科学基金;

关键词：

BEHAVIOR; MOT;

D O I：

10.1088/0256-307X/32/6/064211

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a cold atom system with a dark-line two-dimensional magneto-optical trap, to increase the atomic density by suppressing the atomic radiation pressure. Optical depth (OD) and duty cycle are used to evaluate the system performance. We demonstrate a 100% increase in OD with the dark line, and obtain an ultrahigh OD of 264 with 10% for the duty cycle. Also, with an efficient dark line region, the OD could maintain above 100 with duty cycle as high as 30%. The cold atomic ensemble with an ultrahigh OD with a 10%-30% duty cycle is particularly advantageous in quantum information processing and communication.

引用

页数：4

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