SELF-PHASE-MATCHING MECHANISM FOR EFFICIENT HARMONIC-GENERATION PROCESSES IN A RING PUMP BEAM GEOMETRY

被引：59

作者：

GLUSHKO, B ^{[1
]}

KRYZHANOVSKY, B ^{[1
]}

SARKISYAN, D ^{[1
]}

机构：

[1] ARMENIAN ACAD SCI, INST PHYS RES, ASHTARAK 378410, ARMENIA

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 02期

关键词：

D O I：

10.1103/PhysRevLett.71.243

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new type of phase matching based on the ring-shaped pump beam for efficient harmonic generation is observed. The ring-shaped beam is shown to provide self-organized phase matching for a wide range of refractive index variation, which may automatically compensate the spatially nonuniform phase mismatch created by the optical Kerr effect. Self-phase-matching is expected to be very efficient for frequency tripling of broadband and/or ultrashort pulses, as well as for high order harmonic generation. The high conversion efficiency approximately 1.5% of 1.06 mum radiation tripling in a pure Rb vapor for a very short interaction length approximately 4 cm is obtained, when a disk-shaped beam has been replaced by a ring-shaped beam.

引用

页码：243 / 246

页数：4

共 13 条

[1] INTERACTIONS BETWEEN LIGHT WAVES IN A NONLINEAR DIELECTRIC [J].

ARMSTRONG, JA ;

BLOEMBERGEN, N ;

DUCUING, J ;

PERSHAN, PS .

PHYSICAL REVIEW, 1962, 127 (06) :1918-+

[2] EFFECTS OF FOCUSING ON 3RD-ORDER NONLINEAR PROCESSES IN ISOTROPIC MEDIA [J].

BJORKLUND, GC .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1975, QE11 (06) :287-296

[3] ANGULAR-DISTRIBUTION OF COHERENT RAMAN EMISSION IN DEGENERATE 4-WAVE MIXING WITH PUMPING BY A SINGLE DIFFRACTION COUPLED LASER-BEAM - CONFIGURATIONS FOR HIGH SPATIAL-RESOLUTION [J].

DAVIS, LC ;

MARKO, KA ;

RIMAI, L .

APPLIED OPTICS, 1981, 20 (09) :1685-1690

[4] BOXCARS - CROSSED-BEAM PHASE-MATCHED CARS GENERATION IN GASES [J].

ECKBRETH, AC .

APPLIED PHYSICS LETTERS, 1978, 32 (07) :421-423

[5] MIXING OF LIGHT BEAMS IN CRYSTALS [J].

GIORDMAINE, JA .

PHYSICAL REVIEW LETTERS, 1962, 8 (01) :19-&

[6] EXACT THEORY OF THE 4-WAVE-MIXING PROCESS IN A NONDISSIPATIVE MEDIUM WITH A LARGE RATE OF CONVERSION - WEAK-FIELD CASE [J].

KRYZHANOVSKY, B ;

GLUSHKO, B .

PHYSICAL REVIEW A, 1992, 45 (07) :4979-4989

[7]

KRYZHANOVSKY B, IN PRESS NONLINEAR O

[8] EFFECTS OF DISPERSION AND FOCUSING ON PRODUCTION OF OPTICAL HARMONICS [J].

MAKER, PD ;

SAVAGE, CM ;

TERHUNE, RW ;

NISENOFF, M .

PHYSICAL REVIEW LETTERS, 1962, 8 (01) :21-&

[9] SPACE-RESOLVED AND TIME-RESOLVED COHERENT ANTI-STOKES RAMAN-SPECTROSCOPY FOR COMBUSTION DIAGNOSTICS [J].

MARKO, KA ;

RIMAI, L .

OPTICS LETTERS, 1979, 4 (07) :211-213

[10] OPTICAL THIRD-HARMONIC GENERATION IN ALKALI-METAL VAPORS [J].

MILES, RB ;

HARRIS, SE .

IEEE JOURNAL OF QUANTUM ELECTRONICS, 1973, QE 9 (04) :470-484

← 1 2 →