"Silicon photonics and novel nanomaterials for all-integrated optoelectronic devices"
Silicon photonics and novel nanomaterials for all-integrated optoelectronic devices
Sprache des Titels:
The research field of integrated photonics has been rapidly growing over the last decade, a reflection of the limitations faced by the microelectronics industry as well as an increasing demand for high-speed data transmission and information processing. Integrated photonics utilizes photons instead of electrons to transmit and process information on a chip. Using a Silicon based photonic platform is especially promising as the material itself is very well understood today and the fabrication can be carried out using established and cost-efficient technologies like the complementary metal-oxide-semiconductor (CMOS) process. A lot of essential optoelectronic building blocks like splitters, couplers, modulators and filters have been demonstrated in the past, but when it comes to efficiently generating or detecting light in the telecommunication wavelength regime, Silicon is not well suited due to its indirect band gap. In this thesis, the combination of all-integrated Si-based photonic structures such as waveguides or ring resonators with novel nanomaterials like colloidal nanocrystal quantum dots or graphene for the development of new and improved photonic devices has been investigated.