Please use this identifier to cite or link to this item:
https://doi.org/10.1364/OE.16.017745
Title: | Two-photon-induced excited-state nonlinearities | Authors: | Gu, B. Sun, Y. Ji, W. |
Issue Date: | 27-Oct-2008 | 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 | 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. | Source Title: | Optics Express | URI: | http://scholarbank.nus.edu.sg/handle/10635/98488 | ISSN: | 10944087 | DOI: | 10.1364/OE.16.017745 |
Appears in Collections: | Staff Publications |
Show full item record
Files in This Item:
There are no files associated with this item.
SCOPUSTM
Citations
41
checked on Jan 23, 2023
WEB OF SCIENCETM
Citations
35
checked on Jan 23, 2023
Page view(s)
141
checked on Jan 26, 2023
Google ScholarTM
Check
Altmetric
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.