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Title: Optical limiting properties of CdS nanowires
Authors: Muthukumar, V.S.
Reppert, J.
Suchand Sandeep, C.S.
Krishnan, Siva Rama S.
Podila, Ramakrishna
Kuthirummal, Narayanan
Philip, Reji
+3 Co-authors
Issue Date: 15-Oct-2010
Publisher: Elsevier B.V.
Citation: Optics Communications, 2010, Vol.283, p4104
Abstract: Intensity-dependent nonlinear optical transmission studies of cadmium sulfide (CdS) nanowires (similar to 50-100 nm diameter) suspended in dimethylformamide have been carried out in the visible region using the Z-scan technique with 7 ns pulses from the second harmonic of an Nd:YAG laser. The optical limiting threshold of CdS nanowires suspension was determined to be 1.3 J cm(-2), with normalized transmittance of 0.47, which is relatively lower when compared with those of many popular metal nanowire suspensions reported in the literature. Based on an effective three-photon absorption model, nonlinear absorption and nonlinear scattering were identified as the dominant processes for the measured reduced transmittance.
Description: Restricted Access.
ISSN: 0030-4018
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Copyright: 2010 Elsevier B.V.
Appears in Collections:Research Papers (LAMP)

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