Tunneling induced transparency and slow light in quantum dot molecules
Tunneling induced transparency and slow light in quantum dot molecules
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DOI：
10.1103/physrevb.85.115425
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发表时间：
2012-03-20
影响因子：
3.7
通讯作者：
Alcalde, A. M.
中科院分区：
文献类型：
--
作者：
Borges, H. S.;Sanz, L.;Alcalde, A. M.
电磁感应透明是一种光学现象，其允许通过使用控制激光束使激光束透射通过致密介质。在这里，我们提出使用量子分子，其中控制激光束被量子点之间的电子隧穿所取代，这可以通过外部电场来控制，从而打开了用电子门诱导透明和慢光的可能性。结果表明，当隧穿强度T_e和直接激子γ（1）的衰减速率满足T_e/γ（1）时，会出现透明窗口
Electromagnetic induced transparency is an optical phenomenon that allows transmission of a laser beam through a dense medium by using a control laser beam. Here, we propose the use of a quantum molecule where the control laser beam is replaced by the electron tunneling between quantum dots, which can be controlled by an external electric field, opening the possibility to induce transparency and slow light with electric gates. Our results show that a transparency window appears if the tunneling strength T-e and the decay rate of direct exciton Gamma(1) obey the condition T-e/Gamma(1)