Please use this identifier to cite or link to this item:
http://hdl.handle.net/2289/5999| Title: | Sol–gel prepared Cu2O microspheres: linear and nonlinear optical properties |
| Authors: | Karthikeyan, B. Udayabhaskar, R. Rose, Priya Pandiyarajan, T. Philip, Reji |
| Keywords: | 12months |
| Issue Date: | Aug-2014 |
| Publisher: | Royal Society of Chemistry |
| Citation: | RSC Advance, 2014, Vol. 4, p39541-39546 |
| Abstract: | We report the simple sol–gel based synthesis of size-tunable monodispersed crystalline Cu2O microspheres (CMS) and the measurement of their linear and nonlinear optical properties. Optical absorption spectra show a broad plasmonic absorption band extending from 350 to 1100 nm in general agreement with calculations based on Mie theory, despite the relatively large micron size of the particles. Z-scan measurements (532 nm, 5 ns pulses) reveal that Cu2O microspheres are efficient optical limiters, comparable in strength to nanocarbons and metal/semiconductor nanoparticles. The effective two-photon absorption coefficients are numerically calculated from measured data. These can be tuned systematically by varying the particle size. |
| Description: | Restricted Access. |
| URI: | http://hdl.handle.net/2289/5999 |
| ISSN: | 2046-2069 (Online) |
| Alternative Location: | http://dx.doi.org/10.1039/C4RA05649C |
| Copyright: | 2014 Royal Society of Chemistry |
| Appears in Collections: | Research Papers (LAMP) |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| 2014_RSC Advances_V4_p39541.pdf Restricted Access | Restricted Access | 586.7 kB | Adobe PDF | View/Open Request a copy |
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