Theory of THz emission from optically excited semiconductors in crossed electric and magnetic fields

被引：31

作者：

Meinert, G ^{[1
]}

Bányai, L ^{[1
]}

Gartner, P ^{[1
]}

Haug, H ^{[1
]}

机构：

[1] Univ Frankfurt, Inst Theoret Phys, D-60054 Frankfurt, Germany

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.62.5003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The coherent transients generated by femtosecond interband photoexcitation of a semiconductor in crossed electric and magnetic fields are calculated. The scattering with LO phonons is considered and the complex interplay between excitation and dephasing is analyzed. While below the LO-phonon threshold the signal is not effectively damped, above the threshold damping takes place on a picosecond time scale, in qualitative agreement with corresponding experiments.

引用

页码：5003 / 5009

页数：7

共 30 条

[1]

AGULLORUEDA F, 1995, SEMICONDUCTOR SUPERL, P99

[2]

Bassani F., 1975, ELECT STATES OPTICAL

[3] OPTICAL RECTIFICATION AT SEMICONDUCTOR SURFACES [J].

CHUANG, SL ;

SCHMITTRINK, S ;

GREENE, BI ;

SAETA, PN ;

LEVI, AFJ .

PHYSICAL REVIEW LETTERS, 1992, 68 (01) :102-105

[4] TERAHERTZ RADIATION-INDUCED BY SUBBAND-GAP FEMTOSECOND OPTICAL-EXCITATION OF GAAS [J].

HU, BB ;

ZHANG, XC ;

AUSTON, DH .

PHYSICAL REVIEW LETTERS, 1991, 67 (19) :2709-2712

[5] DC-ELECTRIC-FIELD DEPENDENCE OF THZ RADIATION-INDUCED BY FEMTOSECOND OPTICAL-EXCITATION OF BULK GAAS [J].

HU, BB ;

WELING, AS ;

AUSTON, DH ;

KUZNETSOV, AV ;

STANTON, CJ .

PHYSICAL REVIEW B, 1994, 49 (03) :2234-2237

[6] IDENTIFYING THE DISTINCT PHASES OF CARRIER TRANSPORT IN SEMICONDUCTORS WITH 10-FS RESOLUTION [J].

HU, BB ;

DESOUZA, EA ;

KNOX, WH ;

CUNNINGHAM, JE ;

NUSS, MC ;

KUZNETSOV, AV ;

CHUANG, SL .

PHYSICAL REVIEW LETTERS, 1995, 74 (09) :1689-1692

[7] Creation of highly anisotropic wave packets in quantum wells: Dynamical Franz-Keldysh effect in the optical and terahertz regimes [J].

Hughes, S ;

Citrin, DS .

PHYSICAL REVIEW B, 1999, 59 (08) :R5288-R5291

[8] Spectrum control of THz radiation from InAs in a magnetic field by duration and frequency chirp of the excitation pulses [J].

Izumida, S ;

Ono, S ;

Liu, ZL ;

Ohtake, H ;

Sarukura, N .

APPLIED PHYSICS LETTERS, 1999, 75 (04) :451-453

[9] Dynamical Franz-Keldysh effect [J].

Jauho, AP ;

Johnsen, K .

PHYSICAL REVIEW LETTERS, 1996, 76 (24) :4576-4579

[10] Few-cycle THz emission from cold plasma oscillations [J].

Kersting, R ;

Unterrainer, K ;

Strasser, G ;

Kauffmann, HF ;

Gornik, E .

PHYSICAL REVIEW LETTERS, 1997, 79 (16) :3038-3041

← 1 2 3 →