NETANYA, Israel Israeli scientists are embarking on a research project to create functional photonic devices based on semiconductor nanocrystals that are dispersed in polymer waveguides.
The research is being led by Dr. Dan Marom and Prof. Uri Banin from the Hebrew University in Jerusalem.
Semiconductor nanocrystals are molecular-like semiconductor materials composed of hundreds to thousands of atoms.
A recent example of the application of such nano structures is semiconductor nanorods that manifest the transition from a 'zero dimensional' quantum dot to a 'one dimensional' quantum wire. The properties of such nanostructures can be harnessed for using them as building blocks of devices in nanotechnology.
Potential applications from Dr. Marom's research include saturable absorbers, modulators, switches, and amplifiers, establishing colloidal semiconductor nanocrystals dispersed in polymer waveguides as an alternative to current optical device platforms.
Another group of scientists, led by Prof. Banin, is looking into the preparation, characterization, and the optical, electrical and electronic properties of semiconductor clusters, nanocrystals and nanorods, and incorporating these into optical and electro optical devices such as lasers and light emitting diodes. The scientists are focusing on the nanostructures of semiconductors spanning the range from properties of single nanocrstructures to collective effects in their assemblies.
Dr. Marom's group is also trying to create functional photonic devices to improve optical data flow in communication systems. According to Dr. Marom, the research might enable greater efficiency and new functionality in switching, greater reach by impairment mitigation, increased capacity by adopting optical signal processing techniques, and new materials as lower cost alternatives to existing platforms.