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05. Light and Matter Physics >
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Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/3307
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| Title: | Picosecond Z-scan investigations of optical nonlinearity in CdS nanostructure films |
| Authors: | Kurian, Pushpa Ann
Vijayan, C.
Suchand Sandeep, C.S.
Philip, Reji |
| Keywords: | CdS nanoclusters
Z -Scan
Two photon absorption
strong quantum confinement |
| Issue Date: | Dec-2004 |
| Citation: | Photonics-2004: Proceedings of the 7th international conference on optoelectronics, fiber optics and photonics held at Cochin, December, 2004 |
| Abstract: | Materials with large optical nonlinearity and fast response are essential requirements for the development of
photonics devices such as optical switches and optical limiters. This paper reports on the linear and nonlinear optical
properties of CdS nanoclusters in the size regime of strong quantum confinement synthesized by methods of colloidal
chemistry. Stable films of optical quality are obtained by drying the colloidal solution. CdS nanoclusters of 3.5 nm were
obtained by changing the concentration of the precursors. The nanocluster films thus prepared are found to be very
stable. Large optical nonlinearity is observed in the films in the resonant wavelength region. The nonlinearity appears
to originate predominantly from two-photon absorption. |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/3307 |
| Copyright: | 2004 Photonics |
| Appears in Collections: | Research Papers (LAMP)
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