Temperature dependence of terahertz pulses produced by difference-frequency mixing in InSb

被引：26

作者：

Howells, SC ^{[1
]}

Schlie, LA ^{[1
]}

机构：

[1] UNIV NEW MEXICO,DEPT PHYS,ALBUQUERQUE,NM 87131

来源：

APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 25期

关键词：

D O I：

10.1063/1.114928

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Terahertz radiation emitted from (111) InSb illuminated with focused 1.4 mu m laser pulses is due to both difference-frequency mixing and depletion field driven current. By rotating an undoped (111) InSb sample at a temperature of 80 K about its surface normal, we were able to separate the relative contribution of the azimuthally dependent difference-frequency mixing (DFM) signal from the total terahertz wave form. Contrary to expectations, it was found that the azimuthally dependent spectrum appears nearly identical to the azimuthally independent spectrum. From this, it is concluded that the spectrum of the current surge signal blue shifts as the pump is focused. Also, a strong similarity exists between the temperature dependence of the DFM and current surge signals. (C) 1995 American Institute of Physics.

引用

收藏

页码：3688 / 3690

页数：3

相关论文

共 10 条

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

CHUANG, SL ;

SCHMITTRINK, S ;

GREENE, BI ;

SAETA, PN ;

LEVI, AFJ .

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

[2]

HOWELLS SC, 1994, APPL PHYS LETT, V65, P2948

[3] TEMPERATURE-DEPENDENCE OF FEMTOSECOND ELECTROMAGNETIC-RADIATION FROM SEMICONDUCTOR SURFACES [J].

HU, BB ;

ZHANG, XC ;

AUSTON, DH .

APPLIED PHYSICS LETTERS, 1990, 57 (25) :2629-2631

[4] ULTRAFAST LOCAL FIELD-DYNAMICS IN PHOTOCONDUCTIVE THZ ANTENNAS [J].

PEDERSEN, JE ;

LYSSENKO, VG ;

HVAM, JM ;

JEPSEN, PU ;

KEIDING, SR ;

SORENSEN, CB ;

LINDELOF, PE .

APPLIED PHYSICS LETTERS, 1993, 62 (11) :1265-1267

[5] THZ SPECTROSCOPY AND SOURCE CHARACTERIZATION BY OPTOELECTRONIC INTERFEROMETRY [J].

RALPH, SE ;

GRISCHKOWSKY, D .

APPLIED PHYSICS LETTERS, 1992, 60 (09) :1070-1072

[6] TERAHERTZ OPTICAL RECTIFICATION FROM (110) ZINCBLENDE CRYSTALS [J].

RICE, A ;

JIN, Y ;

MA, XF ;

ZHANG, XC ;

BLISS, D ;

LARKIN, J ;

ALEXANDER, M .

APPLIED PHYSICS LETTERS, 1994, 64 (11) :1324-1326

[7] SHORT TERAHERTZ PULSES FROM SEMICONDUCTOR SURFACES - THE IMPORTANCE OF BULK DIFFERENCE-FREQUENCY MIXING [J].

SAETA, PN ;

GREENE, BI ;

CHUANG, SL .

APPLIED PHYSICS LETTERS, 1993, 63 (25) :3482-3484

[8]

SHEN YR, 1984, PRINICPLES NONLINEAR, P69

[9] OPTOELECTRONIC MEASUREMENT OF SEMICONDUCTOR SURFACES AND INTERFACES WITH FEMTOSECOND OPTICS [J].

ZHANG, XC ;

AUSTON, DH .

JOURNAL OF APPLIED PHYSICS, 1992, 71 (01) :326-338

[10] DIFFERENCE-FREQUENCY-GENERATION AND SUM-FREQUENCY GENERATION NEAR THE BAND-GAP OF ZINCBLENDE CRYSTALS [J].

ZHANG, XC ;

JIN, Y ;

WARE, K ;

MA, XF ;

RICE, A ;

BLISS, D ;

LARKIN, J ;

ALEXANDER, M .

APPLIED PHYSICS LETTERS, 1994, 64 (05) :622-624