Period-doubling and Hopf bifurcations in far-infrared driven quantum well intersubband transitions

被引：3
|
作者：
Batista, AA [1 ]
Birnir, B
Tamborenea, PI
Citrin, DS
机构：
[1] Georgia Inst Technol, Sch Elect & Comp Engn, Atlanta, GA 30332 USA
[2] Univ Calif Santa Barbara, Dept Math, Santa Barbara, CA 93106 USA
[3] Univ Iceland, Inst Sci, IS-107 Reykjavik, Iceland
[4] Univ Buenos Aires, Fac Ciencias Exactas & Nat, Dept Fis, RA-1428 Buenos Aires, DF, Argentina
来源：
PHYSICAL REVIEW B | 2003年 / 68卷 / 03期
关键词：
D O I：
10.1103/PhysRevB.68.035307
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The behavior of n-delta-doped wide quantum well (QW) heterostructures in the presence of intense far-infrared (FIR) radiation is studied using the semiconductor Bloch equations, in the time-dependent Hartree version and without the rotating-wave approximation. A QW is designed where one can either obtain a strong subharmonic (period doubling) or a strong incommensurate (Hopf) frequency response by varying the sheet density and field strength. These strong responses should be attainable with current technology, and the field amplitudes and frequencies of the drive are well within the range of FIR free-electron lasers.
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页数：5
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