Hexagonal Solid-state Ring Cavities For Dye Laser

Dye lasers fulfill a dream that was as old as laser itself: To have an easily tunable laser which would have a very wide range of wavelengths. In the last few years, micro-fluidic dye lasers have been proved to be suitable for integration into polymer or silicon-based "labs-on-a-chip" (LOC) system. However, micro-fluidic dye lasers have some intrinsic disadvantages which can be overcome by solid-state dye lasers. In the last decade, due to the development of nano-imprint lithography (NIL) technique, solid-state dye lasers are become more and more popular for "lab-on-a-chip" implementation.The purpose of this project is to investigate resonance properties of "split coupled" hexagonal cavity and its possible applications for dye lasers. We simulate the behavior of a split-coupled hexagonal micro-cavity by using Comsol Multiphysics simulation package. We got the various output power of the "slit-coupled" hexagonal cavity by changing air gaps inside and outside the cavity. Consequently, by comparing these different cases, we got the optimum air gap lengths inside and outside the cavity. In the last chapter, we describe our trial of nano-particles and metal reflector to see if they can give enhanced gain to the output power of the cavity.