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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/3914

Title: Optical limiting properties of Te and Ag2Te nanowires
Authors: Sandeep, Suchand C.S.
Samal, A.K.
Pradeep, T.
Philip, Reji
Issue Date: 4-Jan-2010
Publisher: Elsevier B.V.
Citation: Chemical Physics Letters, 2010, Vol.485, p326
Abstract: We have prepared tellurium (Te) and silver telluride (Ag2Te) nanowires in solution and investigated their nonlinear optical transmission by the open-aperture z-scan technique, using nanosecond laser pulses, at the excitation wavelengths of 532 and 1064 nm. The nonlinearity has contributions from absorption saturation, excited state absorption and nonlinear scattering processes. The saturation intensity and nonlinear absorption coefficient are calculated numerically. Nonlinear absorption in Ag2Te nanowires is found to be one order of magnitude higher than that in Te nanowires. Observation of optical limiting at both excitation wavelengths indicates the potential of these materials to be used as broadband optical limiters.
Description: Restricted Access.
URI: http://hdl.handle.net/2289/3914
ISSN: 0009-2614
Alternative Location: http://dx.doi.org/10.1016/j.cplett.2009.12.065
Copyright: 2010 Elsevier B.V.
Appears in Collections:Research Papers (LAMP)

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