| Details: |
Recently, bottom-up molecular self-assembly technique[1,2] has emerged as one of the powerful methods to construct miniaturized organic photonic structures, for example optical wave guides,[3-6] lasers,[7] resonators,[8,9] filters[10] and modulators.[11] These soft nano-photonic materials are useful for applications such as nano-coherent laser sources,[12] label free nano-biosensors,[13] nano-optical mode filters,[14] and all-optical switches.[14] The mirror-like geometry of these tiny organic micro-cavities allow them to tightly trap and guide photons by repeated total internal reflection at the interface and act as optical gain media with high quality factor (Q). Shape and size are the two most important determinants of the resonator properties of micro scale photonic structures. In my talk I shall present some of the original single particle micro-spectroscopy experiments peformed in our group to unravel the size and shape dependent photonic properties.
|