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http://hdl.handle.net/2289/3781
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DC Field | Value | Language |
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dc.contributor.author | Lucchetti, L. | - |
dc.contributor.author | Suchand Sandeep, C.S. | - |
dc.contributor.author | Simoni, F. | - |
dc.date.accessioned | 2009-06-17T06:48:32Z | - |
dc.date.available | 2009-06-17T06:48:32Z | - |
dc.date.issued | 2009-03 | - |
dc.identifier.citation | Journal of Optics A: Pure and Applied Optics, 2009, Vol. 11(3), p034002 | en |
dc.identifier.issn | 1464-4258 | - |
dc.identifier.issn | 1741-3567 (Online) | - |
dc.identifier.uri | http://hdl.handle.net/2289/3781 | - |
dc.description | Restricted Access. | en |
dc.description.abstract | We present a fast and simple method to determine the sign of the nonlinear coefficient n2 in films with high nonlinearity. The method exploits the effect of spatial self-phase modulation and the role of wavefront curvature that leads to a specific far field pattern that is dependent on the sign of n2 and on the sample position. The method can be considered a 'visualization' of the Z-scan for highly nonlinear films. Application to nematic liquid crystals under different experimental conditions confirms the results expected from the theory. | en |
dc.language.iso | en | en |
dc.publisher | IOP Publishing Ltd. | en |
dc.relation.uri | http://dx.doi.org/10.1088/1464-4258/11/3/034002 | en |
dc.rights | 2009 IOP Publishing Ltd. | en |
dc.title | Fine structure in spatial self-phase modulation patterns: at a glance determination of the sign of optical nonlinearity in highly nonlinear films | en |
dc.type | Article | en |
Appears in Collections: | Research Papers (LAMP) |
Files in This Item:
File | Description | Size | Format | |
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2009_JOpA_V11_034002.pdf Restricted Access | 7p. | 1 MB | Adobe PDF | View/Open Request a copy |
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