Developing 1D Nanostructure Arrays for Future Nanophotonics

There is intense and growing interest inone-dimensional (1-D) nanostructures from the perspectiveof their synthesis and unique properties,especially with respect to their excellent opticalresponse and an ability to form heterostructures. Thisreview discusses alternative approaches to preparationand organization of such structures, and their potentialproperties. In particular, molecular-scale printing ishighlighted as a method for creating organizedpre-cursor structure for locating nanowires, as well asvapor–liquid–solid (VLS) templated growth using nano-channel alumina (NCA), and deposition of 1-Dstructures with glancing angle deposition (GLAD). Asregards novel optical properties, we discuss as anexample, finite size photonic crystal cavity structuresformed from such nanostructure arrays possessing highQ and small mode volume, and being ideal for developingfuture nanolasers.