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71.
72.
Hirohisa Yokota Jun-ichi Igarashi Yoshitaka Satoda Satoru Ohuchi Yutaka Sasaki 《Optical Review》2002,9(3):94-99
A new all-fiber optical add-drop multiplexer (ADM) using a pair of fiber grating couplers (FGCs) was proposed and first demonstrated. It was theoretically and experimentally shown that both drop and add efficiencies could be maximized in the proposed ADM. It was also clarified that the crosstalk between dropped and added signals could be improved in the proposed ADM compared with that in the single FGC. Drop and add operations in the ADM for 3-channel WDM signals with 1.6 nm wavelength spacing were confirmed. The ADM with signal amplification ability, which consists of a pair of FGCs, an EDF, and a pump-LD, was proposed and demonstrated. It was confirmed that the dropped and transmitted optical signals could be amplified in the ADM, and would be able to expand fiber routing spans. 相似文献
73.
74.
Masao Doi 《Chemical physics》1975,11(1):115-121
A simplified version of the closure approximation, presented in the preceding paper, is applied to the reaction of rigid or flexible macromolecular systems. Two effects are found to be important for understanding the characteristic features of the reaction rates of these systems: (i) the orientation effect, which expresses the accessibility of the active sites, and (ii) the relaxation effect, which reflects the nature of the brownian motion of the active sites. 相似文献
75.
Masao Doi 《Chemical physics letters》1974,26(2):269-272
The viscoelastic properties of concentrated polymer solutions are discussed on the basis of the fixed tube model proposed by de Gennes. It is shown that the steady flow viscosity is proportional to M3, where M is the molecular weight, and that the relaxation spectrum exhibits a hump in the relaxation time proportional to M3. 相似文献
76.
Masao Doi 《Chemical physics》1975,11(1):107-113
A new vibrational principle is presented for reaction rates of diffusion-controlled chemical reaction. The variational principle is obtained by a modification of the closure approximation of Wilemski and Fixman. The closure approximation is found to correspond to a special choice of the trial function in this formation and to yield a lower bound of the reaction rate. This formulation is found to be especially useful for the analysis of reaction between non-simple molecules, such as macromolecules. 相似文献
77.
78.
M. Doi 《Colloid and polymer science》1978,256(3):287
Ohne Zusammenfassung 相似文献
79.
Doi M. 《Colloid and polymer science》1975,253(4):346
Ohne Zusammenfassung 相似文献
80.
S. Sunagawa und M. Doi 《Colloid and polymer science》1978,256(3):302
Ohne Zusammenfassung 相似文献