OPTICAL 3RD-HARMONIC GENERATION IN LAYERED PEROVSKITE-TYPE MATERIAL (C10H21NH3)2PBI4

被引:57
作者
XU, CQ [1 ]
KONDO, T [1 ]
SAKAKURA, H [1 ]
KUMATA, K [1 ]
TAKAHASHI, Y [1 ]
ITO, R [1 ]
机构
[1] IBM JAPAN LTD,TOKYO RES LAB,TOKYO 102,JAPAN
关键词
D O I
10.1016/0038-1098(91)90643-A
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
Optical third-harmonic generation has been investigated over a wide range of wavelengths on a layered perovskite-type material (C10H21NH3)2PbI4, which exhibits prominent two-dimensional exciton effects due to the "natural superlattice" structure. The measured nonlinear optical susceptibility chi(3) (-3-omega; omega, omega, omega) shows large three-photon resonance to the lowest-energy exciton for the fundamental wavelength at 1.53-mu-m. The magnitude of chi(3) reaches 10(-9) esu, which is comparable to the largest reported value on organic materials with one-dimensional conjugated pi-electron structures.
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页码:245 / 248
页数:4
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