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dc.contributor.authorNair, Swapna S.-
dc.contributor.authorThomas, Jinto-
dc.contributor.authorSuchand Sandeep, C.S.-
dc.contributor.authorAnantharaman, M.R.-
dc.contributor.authorPhilip, Reji-
dc.identifier.citationApplied Physics Letters, 2008, Vol.92, p171908en
dc.identifier.issnE-ISSN: 1077-3118-
dc.identifier.issnP-ISSN: 0003-6951-
dc.descriptionOpen Access. Also in ``Virtual Journal of Ultrafast Science", June 2008. Also reported in 2009 July Pradeep Chakraborty's Blogen
dc.description.abstractWe report an optical limiter based on ferrofluids which has a very high shelf life and remarkable thermal stability, which are important requirements for sustainable use with intense lasers. The colloidal suspensions contain nanosized particles of approximately 80 Å diameter, with a number density of the order of 1022/m3. The nonlinear optical transmission of the samples is studied using nanosecond and femtosecond laser pulses. Excited state absorption phenomena contribute to enhanced limiting in the nanosecond excitation regime. An advantageous feature of ferrofluids in terms of device applications is that their optical properties are controllable by an external magnetic field.en
dc.format.extent316941 bytes-
dc.publisherAmerican Institute of Physicsen
dc.rights2008 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics.en
dc.titleAn optical limiter based on ferrofluidsen
Appears in Collections:Research Papers (LAMP)

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