BALLISTIC PROPAGATION OF INTERFACE OPTICAL PHONONS

被引：1

作者：

SIRENKO, YM

STROSCIO, MA

KIM, KW

MITIN, V

机构：

[1] USA,RES OFF,RES TRIANGLE PK,NC 27709

[2] WAYNE STATE UNIV,DEPT ELECT & COMP ENGN,DETROIT,MI 48202

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.51.9863

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss a spatial propagation of interface optical phonons in semiconductor heterostructures. Starting from a quantum kinetic equation for the nondiagonal phonon density operator, we derive the wave-packet presentation for the phonon amplitude for the pure initial phonon state. For small wave vectors, the group velocity determining the speed of the packet can exceed substantially the speed of sound and the wave front can propagate a distance of several micrometers before decay of the optical phonons. The possibility of experimental observation of the effect is discussed. © 1995 The American Physical Society.

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页码：9863 / 9866

页数：4

相关论文

共 27 条

[1] THEORETICAL CALCULATION OF LONGITUDINAL-OPTICAL-PHONON LIFETIME IN GAAS [J].

BHATT, AR ;

KIM, KW ;

STROSCIO, MA .

JOURNAL OF APPLIED PHYSICS, 1994, 76 (06) :3905-3907

[2] IMPULSIVE EXCITATION OF COHERENT PHONONS OBSERVED IN REFLECTION IN BISMUTH AND ANTIMONY [J].

CHENG, TK ;

BRORSON, SD ;

KAZEROONIAN, AS ;

MOODERA, JS ;

DRESSELHAUS, G ;

DRESSELHAUS, MS ;

IPPEN, EP .

APPLIED PHYSICS LETTERS, 1990, 57 (10) :1004-1006

[3] SUBPICOSECOND TIME-RESOLVED COHERENT-PHONON OSCILLATIONS IN GAAS [J].

CHO, GC ;

KUTT, W ;

KURZ, H .

PHYSICAL REVIEW LETTERS, 1990, 65 (06) :764-766

[4] HOT-ELECTRONS AND NONEQUILIBRIUM LA PHONONS IN DELTA-DOPED GAAS [J].

DANILCHENKO, B ;

KLIMASHOV, A ;

ROSHKO, S ;

ASCHE, M .

PHYSICAL REVIEW B, 1994, 50 (08) :5725-5727

[5] NEAR-FIELD FLUORESCENCE IMAGING AND FLUORESCENCE LIFETIME MEASUREMENT OF LIGHT-HARVESTING COMPLEXES IN INTACT PHOTOSYNTHETIC MEMBRANES [J].

DUNN, RC ;

HOLTOM, GR ;

METS, L ;

XIE, XS .

JOURNAL OF PHYSICAL CHEMISTRY, 1994, 98 (12) :3094-3098

[6] RAMAN-STUDY OF INTERFACE PHONONS IN GAAS/ALAS QUANTUM-WELLS - RESONANCE WITH THE E2-H2 EXCITON [J].

FU, LP ;

SCHMIEDEL, T ;

PETROU, A ;

DUTTA, M ;

NEWMAN, PG ;

STROSCIO, MA .

PHYSICAL REVIEW B, 1992, 46 (11) :7196-7199

[7] EVIDENCE FOR VIRTUAL-PHONON EXCHANGE IN SEMICONDUCTOR HETEROSTRUCTURES [J].

GRAMILA, TJ ;

EISENSTEIN, JP ;

MACDONALD, AH ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW B, 1993, 47 (19) :12957-12960

[8] MUTUAL FRICTION BETWEEN PARALLEL 2-DIMENSIONAL ELECTRON-SYSTEMS [J].

GRAMILA, TJ ;

EISENSTEIN, JP ;

MACDONALD, AH ;

PFEIFFER, LN ;

WEST, KW .

PHYSICAL REVIEW LETTERS, 1991, 66 (09) :1216-1219

[9] SECONDARY-EMISSION STUDIES OF HOT CARRIER RELAXATION IN POLAR SEMICONDUCTORS [J].

KASH, JA ;

TSANG, JC .

SOLID-STATE ELECTRONICS, 1988, 31 (3-4) :419-424

[10] INITIAL GENERATION OF HOT LO PHONONS BY PHOTOEXCITED HOT CARRIERS IN GAAS AND ALXGA1-XAS ALLOYS STUDIED BY PICOSECOND RAMAN-SPECTROSCOPY [J].

KIM, DS ;

JACOB, JM ;

ZHOU, JF ;

SONG, JJ ;

HOU, H ;

TU, CW ;

MORKOC, H .

PHYSICAL REVIEW B, 1992, 45 (24) :13973-13977