Lad, Amit D. ; Prem Kiran, P. ; Kumar, G. Ravindra ; Mahamuni, Shailaja (2007) Three-photon absorption in ZnSe and ZnSe/ZnS quantum dots Applied Physics Letters, 90 (13). 133113_1-133113_3. ISSN 0003-6951
Full text not available from this repository.
Official URL: http://apl.aip.org/resource/1/applab/v90/i13/p1331...
Related URL: http://dx.doi.org/10.1063/1.2714994
Abstract
ZnSe and ZnSe/ZnS core/shell quantum dots (QDs) of two different sizes (4.5 and 3.5 nm) have been synthesized. The nonlinear absorption is measured at 1064 nm using a 35 ps laser with an open aperture Z-scan setup. Three-photon absorption (3PA) has been observed in ZnSe and ZnSe/ZnS QDs. 3PA cross section is found to be about four orders of magnitude larger than bulk ZnSe, and three orders of magnitude higher than ZnS QDs. 3PA cross section is found to be increased in ZnSe and in ZnSe/ZnS QDs with decreasing size from 4.5 to 3.5 nm, due to strong confinement effect.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Institute of Physics. |
| Keywords: | Zinc Compounds; II-VI Semiconductors; Wide band gap Semiconductors; Semiconductor Quantum Dots; Optical Materials; Multiphoton Spectra; Nonlinear Optics; High-speed Optical Techniques; Size Effect |
| ID Code: | 29721 |
| Deposited On: | 23 Dec 2010 04:59 |
| Last Modified: | 04 Jun 2011 09:20 |
Repository Staff Only: item control page
