偶极子激光器工作温度首次降至室温

偶极子激光器工作温度首次降至室温

英国和瑞士物理学家首次将偶极子激光器的工作温度降至室温。研究人员宣称，这种半导体激光器件所需要的能量仅为类似的传统固态激光器的十分之一。该技术突破可为光存储系统(CD, DVD, etc.)提供极低功率消耗的激光器。

Polariton laser reaches room temperature (Mar 27)
http://physicsweb.org/article/news/11/3/19
The first polariton laser to operate at room temperature has been
demonstrated by physicists in the UK and Switzerland. The researchers
claim that the semiconductor device requires ten times less energy to
operate than a comparable conventional solid-state laser. The
breakthrough could lead the way to very low power lasers for use in
optical data-storage systems (Phys. Rev. Lett. 98 126405).