Third-order optical nonlinearity of C60, C70, and CS2 in benzene at 1.06 μm

N. Tang*, J. P. Partanen, R. W. Hellwarth, R. J. Knize

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

34 Citations (Scopus)

Abstract

By measuring the third-order nonlinear optical susceptibility χ1111(3)(-ω,ω,ω,-ω) at 1.06 μm of various solutions of C60 and C70 in benzene, we place limits on the hyperpolarizabilities of these molecules of -180≤(γ111160C/γ1111benzene)≤60 and -120≤(γ111170C/γ1111benzene)≤250, respectively. These limits assume that 1.06 μm is near the long-wavelength limit where χ(3) must be real. We also give limits on the imaginary parts of the hyperpolarizabilities, making no assumptions about their phases. The magnitudes of these limits are two orders of magnitude smaller than several values that have been published. We checked our experimental technique by measuring the nonlinear susceptibility of CS2-benzene mixtures and found the value for χCS2(3)/χbenzene(3) of 5.7±0.5. This agrees with parameters deduced from many different experiments published previously.

Original languageEnglish
Pages (from-to)8404-8408
Number of pages5
JournalPhysical Review B
Volume48
Issue number11
DOIs
Publication statusPublished - 15 Sep 1993
MoE publication typeA1 Journal article-refereed

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