Download PDF by S. H. Lin, A. A. Villaeys, Yuichi Fujimura, S. H. Lin, A. A.: Advances in multi-photon processes and spectroscopy. Volume

By S. H. Lin, A. A. Villaeys, Yuichi Fujimura, S. H. Lin, A. A. Villaeys, Yuichi Fujimura

ISBN-10: 9812382631

ISBN-13: 9789812382634

In view of the fast progress in either experimental and theoretical experiences of multi-photon methods and multi-photon spectroscopy of atoms, ions and molecules in chemistry, physics, biology, fabrics technological know-how, etc., it's fascinating to put up a complicated sequence of volumes containing evaluation papers that may be learn not just via energetic researchers in those parts, but additionally via those people who are no longer specialists yet who intend to go into the sphere. the current sequence goals to serve this objective. every one evaluate article is written in a self-contained demeanour by means of the expert(s) within the zone, in order that the reader can grab the information with no an excessive amount of education.

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Extra resources for Advances in multi-photon processes and spectroscopy. Volume 15

Example text

Similarly to the case in Sec. 1, the intermolecular-interaction effects on a/N for these systems are shown to have nonlinear dependencies on their sizes. It is also noted that the size dependency of intermolecular-interaction effects on a/N for (D) is different from those for (L) and (S), which are similar to each other. Namely, (aint - anon) / N values for (L) and (S) rapidly increase with increasing the number of units and then exhibit the saturation of (aint -«„„„)/ N, while (aint -a non )/7V for (D) exhibits a relatively small increasing rate in the small-size region but preserves a large size-dependency in the large-size region.

For the present non-relaxation model (B), the 7 value tends to negatively diverge at the one-photon resonance point, while model (A) (involving both intermolecular-interaction and relaxation effects) is generally predicted to exhibit a broad spectrum of 7 in the resonant region. This feature supports the positive contribution of the relaxation effects on 7 (Fig. 15(c)). In the present model, the relaxation terms of high-lying exciton states, in which the excitons are mainly distributed in the periphery region, are larger than those in lower-lying exciton states, in which the excitons are mainly distributed in the internal region.

The factor ya in Eq. 1, i(>/): one-exciton state). This indicates that the population of higher energy state faster decreases and damps into the lower energy states. The external single-mode laser with 100 MW/cm2 has a frequency (3000 cm"1), which is sufficiently off-resonant with respect to one-exciton states. It is expected from the perturbational formula (Eq. (25)) that the off-resonant a can be qualitatively well described in the one-exciton model. The division number of the one optical cycle of the external field used in the numerical calculation is 80, and the a is calculated by using 100 optical cycles far after an initial non-stationary time evolution (2000 cycles).

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Advances in multi-photon processes and spectroscopy. Volume 15 by S. H. Lin, A. A. Villaeys, Yuichi Fujimura, S. H. Lin, A. A. Villaeys, Yuichi Fujimura


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