Tetragonal Ba2MgGe2O7 - a novel multifunctional optical crystal with numerous manifestations of nonlinear-laser effects: almost sesqui-octave Stokes and anti-Stokes combs and cascaded χ(3) ⇆ χ(2) lasing with involved second and third harmonic generation

被引：58

作者：

Kaminskii, A. A. ^{[1
]}

Bohaty, L. ^{[2
]}

Becker, P. ^{[2
]}

Liebertz, J. ^{[2
]}

Held, P. ^{[2
]}

Eichler, H. J. ^{[3
]}

Rhee, H. ^{[3
]}

Hanuza, J. ^{[4
,5
]}

机构：

[1] Russian Acad Sci, Inst Crystallog, Moscow 119333, Russia

[2] Univ Cologne, Inst Crystallog, D-50674 Cologne, Germany

[3] Tech Univ Berlin, Inst Opt & Atom Phys, D-10623 Berlin, Germany

[4] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50950 Wroclaw, Poland

[5] Wroclaw Univ Econ, Inst Chem & Food Technol, Dept Bioorgan Chem, PL-50345 Wroclaw, Poland

来源：

LASER PHYSICS LETTERS | 2008年 / 5卷 / 12期

基金：

俄罗斯基础研究基金会;

关键词：

stimulated Raman scattering; Stokes and anti-Stokes lasing comb; cascaded self-frequency doubling; cascaded self-frequency tripling; cascaded self-frequency mixing; Raman laser shifter; non-centrosymmetric crystal; Ba2MgGe2O7; melilites;

D O I：

10.1002/lapl.200810089

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Melilite-type Ba2MgGe2O7 was found to be an attractive, simultaneously chi((2)) - and chi((3)) -active nonlinear optical crystal. Under one-micron picosecond Pumping we observed several manifestations of nonlinear interactions, namely almost sesqui-octave Stokes and anti-Stokes lasing combs, collinear and "Cherenkov"-type SHG, THG, SFG, and cascaded self-conversion chi((3)) <-> chi((2)) generation in the visible and UV range. All recorded lasing components were identified and attributed to a single SRS-promoting vibration mode w(SRS) = 771.5 cm(-1). A short review of melilite-type, compounds is given. [GRAPHICS] The fully symmetrical A(1)-vibration mode of the two (GeO3) groups of the dimer [Ge2O7]

引用

页码：845 / 868

页数：24

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