Terahertz emission from ultrafast ionizing air in symmetry-broken laser fields

被引：698

作者：

Kim, K. Y. ^{[1
]}

Glownia, J. H. ^{[1
]}

Taylor, A. J. ^{[1
]}

Rodriguez, G. ^{[1
]}

机构：

[1] Los Alamos Natl Lab, Ctr Integrated Nanotechnol, Los Alamos, NM 87545 USA

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 08期

关键词：

D O I：

10.1364/OE.15.004577

中图分类号：

O43 [光学];

学科分类号：

070207 [光学]; 0803 [光学工程];

摘要：

A transient photocurrent model is developed to explain coherent terahertz emission from air irradiated by a symmetry-broken laser field composed of the fundamental and its second harmonic laser pulses. When the total laser field is asymmetric across individual optical cycles, a non-vanishing electron current surge can arise during optical field ionization of air, emitting a terahertz electromagnetic pulse. Terahertz power scalability is also investigated, and with optical pump energy of tens of millijoules per pulse, peak terahertz field strengths in excess of 150 kV/cm are routinely produced. (c) 2007 Optical Society of America.

引用

页码：4577 / 4584

页数：8

共 20 条

[1]

Ammosov M. V., 1986, Soviet Physics - JETP, V64, P1191

[2]

Generation of single-cycle THz transients with high electric-field amplitudes [J].

Bartel, T ;

Gaal, P ;

Reimann, K ;

Woerner, M ;

Elsaesser, T .

OPTICS LETTERS, 2005, 30 (20) :2805-2807

[3]

Intense terahertz pulses by four-wave rectification in air [J].

Cook, DJ ;

Hochstrasser, RM .

OPTICS LETTERS, 2000, 25 (16) :1210-1212

[4]

PLASMA PERSPECTIVE ON STRONG-FIELD MULTIPHOTON IONIZATION [J].

CORKUM, PB .

PHYSICAL REVIEW LETTERS, 1993, 71 (13) :1994-1997

[5]

Calculating the Keldysh adiabaticity parameter for atomic, diatomic, and polyatomic molecules [J].

DeWitt, MJ ;

Levis, RJ .

JOURNAL OF CHEMICAL PHYSICS, 1998, 108 (18) :7739-7742

[6]

PHASE-CONTROLLED CURRENTS IN SEMICONDUCTORS [J].

DUPONT, E ;

CORKUM, PB ;

LIU, HC ;

BUCHANAN, M ;

WASILEWSKI, ZR .

PHYSICAL REVIEW LETTERS, 1995, 74 (18) :3596-3599

[7]

DEVELOPMENT OF A PLASMA WAVE-GUIDE FOR HIGH-INTENSITY LASER-PULSES [J].

DURFEE, CG ;

LYNCH, J ;

MILCHBERG, HM .

PHYSICAL REVIEW E, 1995, 51 (03) :2368-2389

[8]

REVIEW OF 4-WAVE-MIXING AND PHASE CONJUGATION IN PLASMAS [J].

FEDERICI, JF .

IEEE TRANSACTIONS ON PLASMA SCIENCE, 1991, 19 (04) :549-564

[9]

Single and double ionization of diatomic molecules in strong laser fields [J].

Guo, C ;

Li, M ;

Nibarger, JP ;

Gibson, GN .

PHYSICAL REVIEW A, 1998, 58 (06) :R4271-R4274

[10]

Quantum interference control of electrical currents in GaAs [J].

Hache, A ;

Sipe, JE ;

van Driel, HM .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1998, 34 (07) :1144-1154

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