BLOCH OSCILLATIONS AT ROOM-TEMPERATURE

被引：94

作者：

DEKORSY, T ^{[1
]}

OTT, R ^{[1
]}

KURZ, H ^{[1
]}

KOHLER, K ^{[1
]}

机构：

[1] FRAUNHOFER INST APPL SOLID STATE PHYS,D-79108 FREIBURG,GERMANY

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.51.17275

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the observation of coherent electronic wave-packet oscillations in a semiconductor heterostructure at room temperature. Bloch oscillations are excited in a wide-miniband GaAs/Al0.3Ga0.7As superlattice by femtosecond laser pulses. Several cycles of the coherent electronic motion are observed within the dephasing time of the intraband polarization. The frequency can be tuned by the applied electric field from 4.5 to 8 THz. © 1995 The American Physical Society.

引用

页码：17275 / 17278

页数：4

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