Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1538160 | Optics Communications | 2010 | 4 Pages |
Abstract
Intensity-dependent nonlinear optical transmission studies of cadmium sulfide (CdS) nanowires (∼ 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.
Related Topics
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Electronic, Optical and Magnetic Materials
Authors
V. Sai Muthukumar, J. Reppert, C.S. Suchand Sandeep, S. Siva Rama Krishnan, R. Podila, N. Kuthirummal, S. Siva Sankara Sai, K. Venkataramaniah, R. Philip, A.M. Rao,