Please use this identifier to cite or link to this item:
https://doi.org/10.1364/OE.16.017745
DC Field | Value | |
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dc.title | Two-photon-induced excited-state nonlinearities | |
dc.contributor.author | Gu, B. | |
dc.contributor.author | Sun, Y. | |
dc.contributor.author | Ji, W. | |
dc.date.accessioned | 2014-10-16T09:47:40Z | |
dc.date.available | 2014-10-16T09:47:40Z | |
dc.date.issued | 2008-10-27 | |
dc.identifier.citation | Gu, B., Sun, Y., Ji, W. (2008-10-27). Two-photon-induced excited-state nonlinearities. Optics Express 16 (22) : 17745-17751. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.16.017745 | |
dc.identifier.issn | 10944087 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/98488 | |
dc.description.abstract | We report a theoretical investigation of laser-pulse-duration dependence of excited-state nonlinearities induced by two-photon absorption (2PA). We investigate the spatiotemporal characteristics of the transmitted pulses caused by 2PA-induced excited-state absorption, which strongly depends on laser pulse duration. By taking into account 2PA cross-section, excited-state photophysical properties, as well as laser pulse duration, we quantitatively determine the effective fifth-order nonlinearities caused by excited-state absorption and refraction. The results are capable of predicting the magnitude of 2PA-induced excited-state nonlinearities on the time scales where laser pulse duration is less than or comparable to the lifetime of 2PA-induccd excited states. We also develop Z-scan theories for quickly yet unambiguously estimation of 2PA coefficient, third-order nonlinear refraction index, and excited-state absorption and refraction cross-sections. © 2008 Optical Society of America. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1364/OE.16.017745 | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | PHYSICS | |
dc.description.doi | 10.1364/OE.16.017745 | |
dc.description.sourcetitle | Optics Express | |
dc.description.volume | 16 | |
dc.description.issue | 22 | |
dc.description.page | 17745-17751 | |
dc.identifier.isiut | 000260865900061 | |
Appears in Collections: | Staff Publications |
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