Ultrafast piezospectroscopy in semiconductor nanostructures

被引：0

作者：

Akimov, A. V. ^{[1
]}

Scherbakov, A. V. ^{[1
]}

Berstermann, T. ^{[2
]}

Yakovlev, D. R. ^{[1
,2
]}

van Capel, P. J. S. ^{[3
]}

Dijkhuis, J. I. ^{[3
]}

Bayer, M. ^{[2
]}

机构：

[1] AF Ioffe Phys Tech Inst, Politekhnicheskaya 26, St Petersburg 194021, Russia

[2] Univ Dortmund, Expt Phys 2, D-44221 Dortmund, Germany

[3] Univ Utrecht, Debye Inst, Dept Phys & Astron, NL-3508 TA Utrecht, Netherlands

来源：

ULTRAFAST PHENOMENA IN SEMICONDUCTORS AND NANOSTRUCTURE MATERIALS XII | 2008年 / 6892卷

关键词：

ultrafast acoustics; excitons; semiconductor nanostructures; acoustic solitons;

D O I：

10.1117/12.760268

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We use the internal picosecond strain pulses to control the electron energy in a semiconductor quantum well. For generating the strain pulse a 100 nm thick metal transducer was hit by intense laser pulse and a strain pulse with duration similar to 10 ps and amplitude up to 0.1% was injected into a GaAs substrate. This strain pulse travels strongly directed through the crystal towards the quantum well generating at each momentary position a "nano-earthquake". When the quantum well is hit by this "earth quake", the exciton resonance is shifted on a value up to 10 meV on a ps time scale.

引用

页数：7

共 26 条

[1] Ultrafast band-gap shift induced by a strain pulse in semiconductor heterostructures [J].

Akimov, A. V. ;

Scherbakov, A. V. ;

Yakovlev, D. R. ;

Foxon, C. T. ;

Bayer, M. .

PHYSICAL REVIEW LETTERS, 2006, 97 (03)

[2]

AKIMOV AV, 2003, ELECT PHONON INTERAC, P239

[3] Binding energy of charged excitons in ZnSe-based quantum wells [J].

Astakhov, GV ;

Yakovlev, DR ;

Kochereshko, VP ;

Ossau, W ;

Faschinger, W ;

Puls, J ;

Henneberger, F ;

Crooker, SA ;

McCulloch, Q ;

Wolverson, D ;

Gippius, NA ;

Waag, A .

PHYSICAL REVIEW B, 2002, 65 (16) :1653351-16533517

[4]

Cardona M., 1969, Modulation Spectroscopy

[5] Picosecond acoustic phonon pulse propagation in silicon [J].

Daly, BC ;

Norris, TB ;

Chen, J ;

Khurgin, JB .

PHYSICAL REVIEW B, 2004, 70 (21) :1-8

[6]

GROSS AF, 1961, SOV PHYS-SOL STATE, V2, P1518

[7] Dispersion of the long-wavelength phonons in Ge, Si, GaAs, quartz, and sapphire [J].

Hao, HY ;

Maris, HJ .

PHYSICAL REVIEW B, 2001, 63 (22)

[8] Experiments with acoustic solitons in crystalline solids [J].

Hao, HY ;

Maris, HJ .

PHYSICAL REVIEW B, 2001, 64 (06)

[9]

Ivchenko E. L., 1997, Superlattices and Other Heterostructures: Symmetry and Optical Phenomena

[10]

IVCHENKO EL, 1988, SOV PHYS SEMICOND+, V22, P495

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