POSSIBILITY OF TERAHERTZ EMISSION WITH A TIME-DEPENDENT AMPLITUDE IN SEMICONDUCTOR QUANTUM-WELLS

被引：12

作者：

HERNANDEZCABRERA, A

ACEITUNO, P

CRUZ, H

机构：

[1] Departamento de Física Fundamental y Experimental, Universidad de La Laguna, 38204 La Laguna, Tenerife

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.50.8878

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, we have numerically integrated in space and time the effective-mass Schrodinger equation for an exciton in a semiconductor structure. Considering a Coulomb interaction between the electron-hole pair in a triple quantum-well system, we have obtained a time-varying dipole moment in the heterostructure with an amplitude which is also oscillating with time. In this way, we have shown the possibility of having another kind of terahertz electromagnetic radiation emerging from a semiconductor device after an optical excitation of the sample.

引用

页码：8878 / 8881

页数：4

共 12 条

[1] RECENT ADVANCES IN ULTRA-HIGH-SPEED HEMT TECHNOLOGY [J].

ABE, M ;

MIMURA, T ;

NISHIUCHI, K ;

SHIBATOMI, A ;

KOBAYASHI, M .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1986, 22 (09) :1870-1879

[2] HYDROGENIC IMPURITY STATES IN A QUANTUM WELL - A SIMPLE-MODEL [J].

BASTARD, G .

PHYSICAL REVIEW B, 1981, 24 (08) :4714-4722

[3] A BIRDS-EYE-VIEW ON THE EVOLUTION OF SEMICONDUCTOR SUPERLATTICES AND QUANTUM-WELLS [J].

ESAKI, L .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1986, 22 (09) :1611-1624

[4] SUPPRESSION OF THE OBSERVATION OF STARK LADDERS IN OPTICAL MEASUREMENTS ON SUPERLATTICES BY EXCITONIC EFFECTS [J].

FOX, AM ;

MILLER, DAB ;

CUNNINGHAM, JE ;

JAN, WY ;

CHAO, CYP ;

CHUANG, SL .

PHYSICAL REVIEW B, 1992, 46 (23) :15365-15376

[5] COMPUTER-GENERATED MOTION PICTURES OF 1-DIMENSIONAL QUANTUM-MECHANICAL TRANSMISSION AND REFLECTION PHENOMENA [J].

GOLDBERG, A ;

SCHEY, HM ;

SCHWARTZ, JL .

AMERICAN JOURNAL OF PHYSICS, 1967, 35 (03) :177-&

[6] POSSIBILITY OF A DIRECT OBSERVATION OF THE TIME EVOLUTION IN HETEROSTRUCTURE BARRIER TUNNELING [J].

LURYI, S .

SOLID STATE COMMUNICATIONS, 1988, 65 (08) :787-789

[7] EXCITONIC EFFECTS ON COHERENT OSCILLATIONS OF A PHOTOEXCITED WAVE PACKET IN DOUBLE QUANTUM-WELLS [J].

MOHAIDAT, JM ;

SHUM, K ;

ALFANO, RR .

PHYSICAL REVIEW B, 1992, 45 (07) :3822-3825

[8]

PKABJEB OCN, 1982, PHYS REV LETT, V69, P3800

[9] COHERENT SUBMILLIMETER-WAVE EMISSION FROM CHARGE OSCILLATIONS IN A DOUBLE-WELL POTENTIAL [J].

ROSKOS, HG ;

NUSS, MC ;

SHAH, J ;

LEO, K ;

MILLER, DAB ;

FOX, AM ;

SCHMITTRINK, S ;

KOHLER, K .

PHYSICAL REVIEW LETTERS, 1992, 68 (14) :2216-2219

[10] TUNNELING IN A FINITE SUPERLATTICE [J].

TSU, R ;

ESAKI, L .

APPLIED PHYSICS LETTERS, 1973, 22 (11) :562-564

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