OPTICAL FREQUENCY MIXING THROUGH CASCADED 2ND-ORDER PROCESSES IN BETA-BARIUM BORATE

被引：51

作者：

TAN, H ^{[1
]}

BANFI, GP ^{[1
]}

TOMASELLI, A ^{[1
]}

机构：

[1] UNIV PAVIA,DIPARTIMENTO ELETTRON,I-27100 PAVIA,ITALY

来源：

APPLIED PHYSICS LETTERS | 1993年 / 63卷 / 18期

关键词：

D O I：

10.1063/1.110453

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We show that the large effective optical nonlinearity, which is produced by cascaded second-order processes, allows us to accomplish the frequency conversion of a signal pulse with a pump pulse of moderate intensity. In a 1 cm long beta-barium borate crystal the cascaded effect enhances by 5 orders of magnitude the efficiency of the frequency mixing process. The enhancement is larger than 10(4) even in non-phase-matched condition for the intermediate second-harmonic field, when the imaginary part of the induced nonlinear susceptibility is negligible.

引用

页码：2472 / 2474

页数：3

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