利用激光在量子阱结构中捕获冷激子。

Trapping of cold excitons in quantum well structures with laser light.

作者信息

Hammack A T, Griswold M, Butov L V, Smallwood L E, Ivanov A L, Gossard A C

机构信息

Department of Physics, University of California at San Diego, La Jolla, California 92093-0319, USA.

出版信息

Phys Rev Lett. 2006 Jun 9;96(22):227402. doi: 10.1103/PhysRevLett.96.227402. Epub 2006 Jun 8.

DOI:10.1103/PhysRevLett.96.227402

PMID:16803343

Abstract

Optical trapping and manipulation of neutral particles has led to a variety of experiments from stretching DNA-molecules to trapping and cooling of neutral atoms. An exciting recent outgrowth of the technique is an experimental implementation of atom Bose-Einstein condensation. In this Letter, we propose and demonstrate laser-induced trapping for a new system--a gas of excitons in quantum well structures. We report on the trapping of a highly degenerate Bose gas of excitons in laser-induced traps.

摘要

对中性粒子的光学捕获和操控已催生了各种各样的实验，从拉伸DNA分子到捕获和冷却中性原子。该技术最近令人兴奋的一个新成果是原子玻色-爱因斯坦凝聚的实验实现。在本信函中，我们提出并演示了一种针对新系统——量子阱结构中的激子气体——的激光诱导捕获。我们报告了在激光诱导阱中对高度简并的激子玻色气体的捕获情况。