Generation of Reflected Second Harmonic at Semiconductor Quantum Dots

被引：0
|
作者：
Aktsipetrov, O. A. [1 ]
Nikulin, A. A. [1 ]
Ekimov, A. I. [2 ]
机构：
[1] Moscow MV Lomonosov State Univ, Moscow 119992, Russia
[2] Ioffe Inst, St Petersburg 194021, Russia
来源：
JETP LETTERS | 2023年 / 118卷 / SUPPL 1期
关键词：
2ND HARMONIC-GENERATION; TRANSITION; SURFACE;
D O I：
10.1134/S0021364023130015
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Generation of the reflected second harmonic has been observed for the first time in a composite material: a glass matrix containing microscopic CdSe crystals, ranging in size from 500 to 50 angstrom. The violation of polarization selection rules in the second-harmonic generation indicates that the nonlinear sources are of a fluctuational nature. A size effect has also been observed: The intensity of the second harmonic increases by a factor of 102 as the size of the microscopic crystals is reduced. A possible mechanism for this size effect is analyzed.
引用
收藏
页码：S2 / S5
页数：4
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