Abstract
We report the study of the dynamics of the third-order nonlinear optical response of polydiacetylene micro-crystals. The material employed is the polydiacetylene know as poly-DCHD, and the micro-crystals were 100 nm in diameter contained in an aqueous suspension. Experimental results for transient changes in transmission measured by a time-resolved excite-probe technique, conducted with l00fs pulses at 850 nm from a mode-locked Ti:sapphire laser are presented. A discussion of the role of the excitonic origin of the nonlinear response is also presented.
Original language | English |
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Pages (from-to) | 396 |
Number of pages | 1 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 4829 I |
DOIs | |
Publication status | Published - 2003 |
Event | 19th Congress of the International Commisssion for Optics Optics for the Quality of Life - Firenze, Italy Duration: 2002 Aug 25 → 2002 Aug 30 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering