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11.
A. Ashkin P. W. Smith J. M. Dziedzic W. J. Siekhaus W. H. Lowdermilk J. E. Swain R. L. Cone D. A. Ender M. S. Otteson Paula L. Fisher J. M. Friedman H. J. Guggenheim Liang Peihui Gu Zhongmin Zhang Weiqing J. -M. Halbout C. L. Tang S. D. Durbin S. M. Arakelian M. M. Cheung Y. R. Shen M. W. Sigrist V. G. Mikhalevich Liu Songhao Ho Kexlang Hui Lingkai Cui Junwen Li Qun D. G. Seiler D. Heiman R. Feigenblatt R. L. Aggarwal B. Lax H. P. Trommsdorff L. R. Andrews R. M. Hochstrasser R. Reinisch M. Nevière 《Applied physics. B, Lasers and optics》1982,28(2-3):142-149
12.
We report measurements on the second and third order nonlinear hyperpolarizabilities of the urea molecule using the techniques of dc field induced second-harmonic generation and four-wave mixing. Single crystals of urea have been grown and found to have high optical damage thresholds from the near ir to the uv region of the spectrum. 相似文献
13.
Gilles Halbout 《Compositio Mathematica》2001,126(2):123-145
Let k be the field or let M be the space k
n and let A be the algebra of polynomials over M. We know from Hochschild and co-workers that the Hochschild homology H
·(A,A) is isomorphic to the de Rham differential forms over M: this means that the complexes (C
·(A,A),b) and (·(M), 0) are quasi-isomorphic. In this work, I produce a general explicit homotopy formula between those two complexes. This formula can be generalized when M is an open set in a complex manifold and A is the space of holomorphic functions over M. Then, by taking the dual maps, I find a new homotopy formula for the Hochschild cohomology of the algebra of smooth fonctions over M (when M is either a complex or a real manifold) different from the one given by De Wilde and Lecompte. I will finally show how this formula can be used to construct an homotopy for the cyclic homology. 相似文献