3D photonic crystal based architectures for engineering the emission properties of selected fluorophores

Abstract

Investigations on photonic crystal-based structures have paved the newlineway for diversified applications owing to their iridescence and photonic newlineband gap properties. Photonic band gap arises due to the existence of a newlinetranslational periodicity of refractive index in the photonic crystal newlinestructures, leading to a forbidden range of frequencies for photons newlineinteracting with these structures. Photonic crystals, the optical analogue of newlineatomic lattices, have the potential to play a crucial role in next-generation newlinetechnologies, particularly in all-optical devices. Similar to how electrons newlineserve as information carriers in semiconductor-based devices, photons take newlineon this role in photonic crystals. Moreover, the weaker interactions between newlinephotons, compared to the stronger interactions among electrons, result in newlinesignificantly reduced energy losses. Photons can contribute to high-speed newlineperformance in integrated circuits, as they are the fastest information newlinecarriers. The concept of photonic crystals is born out of two independent newlineworks by Prof. Eli Yablonovitch and Prof. Sajeev John. If the former newlineworked towards a structure for controlling the radiative properties of newlinematerials, the latter s aim was a structure with random refractive index newlinevariation that could contribute to light localization. newline