Abstract
We present an overview of recent results obtained in nano-dispersed nonlinear neat organic liquids and liquid crystals. Experimental observations confirm the enhancement of nonlinear absorption in gold nano-spheres doped neat nonlinear liquids and extension of the bandwidth of efficient all-optical switching operation for visible-near infrared lasers in time scales ranging from sub-picoseconds through nanoseconds and microseconds and longer. Similar nano-particulate doped liquid crystal films also exhibit efficient all-optical switching capabilities for microseconds - cw lasers. Meta-materials fabricated with core-shell nano-spheres dispersed nematic liquid crystals show effective refractive indices that are tunable from negative through zero to positive values.
Original language | English |
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Pages (from-to) | 934-944 |
Number of pages | 11 |
Journal | Molecular crystals and liquid crystals |
Volume | 485 |
DOIs | |
Publication status | Published - 2008 |
Externally published | Yes |
Keywords
- All-time-scales
- Liquid crystal
- Neat organic liquid
- Negative and zero refractive index
- Passive optical switching
- Sensor protection
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics