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http://hdl.handle.net/2289/4173Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Mary, A.P.R. | - |
| dc.contributor.author | Sandeep, Suchand C.S. | - |
| dc.contributor.author | Narayanan, T.N. | - |
| dc.contributor.author | Philip, Reji | - |
| dc.contributor.author | Moloney, Padraig | - |
| dc.contributor.author | Ajayan, P.M. | - |
| dc.contributor.author | Anantharaman, M.R. | - |
| dc.date.accessioned | 2011-09-30T04:18:58Z | - |
| dc.date.available | 2011-09-30T04:18:58Z | - |
| dc.date.issued | 2011-09-16 | - |
| dc.identifier.citation | Nanotechnology, 2011, Vol.22, 375702 | en |
| dc.identifier.issn | 0957-4484 | - |
| dc.identifier.issn | 1361-6528 (online) | - |
| dc.identifier.uri | http://hdl.handle.net/2289/4173 | - |
| dc.description | Open Access | en |
| dc.description.abstract | Oxide free stable metallic nanofluids have the potential for various applications such as in thermal management and inkjet printing apart from being a candidate system for fundamental studies. A stable suspension of nickel nanoparticles of ∼5 nm size has been realized by a modified two-step synthesis route. Structural characterization by x-ray diffraction and transmission electron microscopy shows that the nanoparticles are metallic and are phase pure. The nanoparticles exhibited superparamagnetic properties. The magneto-optical transmission properties of the nickel nanofluid (Ni-F) were investigated by linear optical dichroism measurements. The magnetic field dependent light transmission studies exhibited a polarization dependent optical absorption, known as optical dichroism, indicating that the nanoparticles suspended in the fluid are non-interacting and superparamagnetic in nature. The nonlinear optical limiting properties of Ni-F under high input optical fluence were then analyzed by an open aperture z-scan technique. The Ni-F exhibits a saturable absorption at moderate laser intensities while effective two-photon absorption is evident at higher intensities. The Ni-F appears to be a unique material for various optical devices such as field modulated gratings and optical switches which can be controlled by an external magnetic field. | en |
| dc.language.iso | en | en |
| dc.publisher | IOP Publishing Ltd. | en |
| dc.relation.uri | http://dx.doi.org/10.1088/0957-4484/22/37/375702 | en |
| dc.rights | 2011 IOP Publishing Ltd. | en |
| dc.title | Nonlinear and magneto-optical transmission studies on magnetic nanofluids of non-interacting metallic nickel nanoparticles | en |
| dc.type | Article | en |
| Appears in Collections: | Research Papers (LAMP) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2011_NanoTech,Vol.22_p1.pdf | Open access | 899.5 kB | Adobe PDF | View/Open |
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