摘要
在光学腔与四能级原子组成的非线性光学双稳系统中,利用调谐于不同能级附近的控制信号光脉冲可以使光学腔模产生“正”或“负”的非线性相移,从而实现了光学双稳迟滞曲线的受控移动及双稳“高态”与“低态”之间的可控跃变.基于上述效应,完成了光学信号的全光存储与腔输出状态的低功率控制开关.这一结果为全光及量子信息处理提供了新的可供利用的物理机制.
In an optical bistability system consisting of an optical cavity and four-level atoms positive and negative phase shifts of an intracavity optical mode can be observed under the action of control signal pulses tuned close to certain energy levels of the atoms. The bistability hysteresis curve can thus be shifted and switching between the 'low' and high' transmission states obtained in a controlled manner. Based on the above effects we have realized all-optical storage and optical switching controlled with low light power. This mechanism may be of potential use for all-optical quantum information processing.
出处
《物理》
CAS
北大核心
2005年第4期250-253,共4页
Physics
基金
国家自然科学基金(批准号:60325414
60238010)
山西省高等学校拔尖创新人才基金
山西省归国留学基金
山西省自然科学基金(批准号:20011030
20031007)资助项目
