Pulse duration dependence of the third order optical nonlinearity of a cadmium sulfide dendrimer nanocomposite

Roger Dorsinville; Valeria Balogh-Nair; Michael Etienne; Mary Potasek; A. Walser

doi:10.1117/12.703186

8 February 2007 Pulse duration dependence of the third order optical nonlinearity of a cadmium sulfide dendrimer nanocomposite

Roger Dorsinville, Valeria Balogh-Nair, Michael Etienne, Mary Potasek, A. Walser

Author Affiliations +

Proceedings Volume 6471, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV; 647105 (2007) https://doi.org/10.1117/12.703186
Event: Integrated Optoelectronic Devices 2007, 2007, San Jose, California, United States

Abstract

Open and close aperture Z-scans were performed on various CdS quantum dots embedded in either generation 4 (G4) and G5 poly(propyleneimine) dendrimer films using picosecond and femtosecond pulses between 350 nm and 1 &mgr;m. The films had an average thickness of 400nm. The measured values of the third order nonlinear coefficient were among the highest off-resonance nonlinearities reported for organic and/or hybrid composites materials. However, the nonlinear response with picosecond pulses were about an order of magnitude higher than the femtosecond counterpart. We show that the nonlinear response in these materials is also a function of the dynamics of the excited states involved and that measurements of the nonlinear optical coefficient with pulses of different duration is directly correlated to the dynamics of the excited states.

Citation Download Citation

Roger Dorsinville, Valeria Balogh-Nair, Michael Etienne, Mary Potasek, and A. Walser "Pulse duration dependence of the third order optical nonlinearity of a cadmium sulfide dendrimer nanocomposite", Proc. SPIE 6471, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XI and Semiconductor Photodetectors IV, 647105 (8 February 2007); https://doi.org/10.1117/12.703186

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available