Enhanced of the Two photon Absorption in Nanostructure Wide Band gap Semiconductor CdS using femtosecond Laser | ||
| JOURNAL OF THI-QAR SCIENCE | ||
| Article 1, Volume 5, Issue 1, March 2016, Pages 65-70 | ||
| Authors | ||
| Raied K. Jamal; Kadhim A. Adem; Mohammed A. Hameed | ||
| Abstract | ||
| We observed strong nonlinear absorption in the CdS nanoparticles of dimension in the range 50-100 nm when irradiant with femtosecond pulsed laser at 800 nm and 120 GW/cm2 irradiance intensity. The repetition rate and average power were 250 kHz and 30 mW. The CdS nanoparticles sizes were controlled by reaction time of S-olylamine and Cd-alylamine components interacting at 300 oC. The structures of the prepared CdS nanoparticles was tested and its optical properties were investigated. The nonlinear absorption coefficient was measured using a fully computerized z-scan unit. The results show the value of ß is in order of 116 cm/GW. This value is in a good agreement with values mentioned by other studies. | ||
| Keywords | ||
| Nonlinear optics; Nanostructure semiconductor | ||
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